Criteria The Army Distinguished Service Medal may be awarded to any person who, while serving in any capacity with the United States Army, performs exceptionally meritorious service in a duty of great responsi... The Army Distinguished Service Medal may be awarded to any person who, while serving in any capacity with the United States Army, performs exceptionally meritorious service in a duty of great responsibility. The individual's performance must merit recognition for services which are clearly exceptional, and the performance of normal duties in an exceptional manner by itself will not justify an award of the Army Distinguished Service Medal MoreHide
Criteria The Air Medal may be awarded to individuals who, while serving in any capacity with the Armed Forces, distinguish themselves by heroism, outstanding achievement, or by meritorious service while partic... The Air Medal may be awarded to individuals who, while serving in any capacity with the Armed Forces, distinguish themselves by heroism, outstanding achievement, or by meritorious service while participating in aerial flight, but not of a degree that would justify an award of the Distinguished Flying Cross. MoreHide
Criteria The Silver Star may be awarded to any person who, while serving in any capacity with the Armed Forces of the United States, is cited for gallantry in action, against an enemy of the United States whil... The Silver Star may be awarded to any person who, while serving in any capacity with the Armed Forces of the United States, is cited for gallantry in action, against an enemy of the United States while engaged in military operations involving conflict with an opposing foreign force or, while serving with friendly foreign forces engaged in armed conflict against an opposing armed force in which the United States is not a belligerent party.The required gallantry, while of a lesser degree than that required for the award of a Distinguished Service Cross, Navy Cross, or Air Force Cross, must nevertheless have been performed with marked distinction. MoreHide
Criteria The National Defense Service Medal is awarded for honorable active service as a member of the Armed Forces during the Korean War, Vietnam War, the war against Iraq in the Persian Gulf, and for service... The National Defense Service Medal is awarded for honorable active service as a member of the Armed Forces during the Korean War, Vietnam War, the war against Iraq in the Persian Gulf, and for service during the current War on Terrorism. In addition, all members of the National Guard and Reserve who were part of the Selected Reserve in good standing between August 2, 1990, to November 30, 1995, are eligible for the National Defense Service Medal. In the case of Navy personnel, Midshipment attending the Naval Academy during the qualifying periods are eligible for this award, and Naval Reserve Officer Training Corps (NROTC) Midshipmen ae only eligible if they participated in a summer cruise that was in an area which qualified for a campaign medal. MoreHide
Criteria The Korean Service Medal was awarded for service between the outbreak of hostilities (June 25, 1950) and the date the armistice was signed (July 27, 1953); Been on permanent assignment or on temporary... The Korean Service Medal was awarded for service between the outbreak of hostilities (June 25, 1950) and the date the armistice was signed (July 27, 1953); Been on permanent assignment or on temporary duty for thirty consecutive days or sixty non-consecutive days, and Performed duty within the territorial limits of Korea, in the waters immediately adjacent thereto or in aerial flight over Korea participating in actual combat operation or in support of combat operations. MoreHide
Criteria The United Nations Korean Medal was generally awarded for any period of service while assigned as a member of the Armed Forces dispatched to Korea or adjacent areas for service on behalf of the United... The United Nations Korean Medal was generally awarded for any period of service while assigned as a member of the Armed Forces dispatched to Korea or adjacent areas for service on behalf of the United Nations. Service in qualifying organizations had to be certified by the United Nations Commander-in-Chief as having directly supported military operations in Korea. In the case of the United States, such certification was issued in General Orders 31 (June 20, 1955); General Orders 33 (July 11, 1955); and General Orders 36 (July 13, 1955). MoreHide
June to September 1950. Communist efforts to divide the South Koreans against themselves having failed, the North Koreans decided to attempt their subjugation by military force. At 0400, Sund
June to September 1950. Communist efforts to divide the South Koreans against themselves having failed, the North Koreans decided to attempt their subjugation by military force. At 0400, Sunday, 25 June 1950 (Korean Time), North Korean forces crossed the 38th parallel into the Republic and launched their main effort toward the South Korean capital city of Seoul, down the P'och'on-Uijongbu and Yonch'on-Uijongbu corridors. Strong attacks were also directed through Kaesong toward Munsan on the right, and toward Ch'unch'on on the left. On the west coast the Ongjin Peninsula was quickly captured. On the east coast a land column and a small seaborne detachment met near Kangnung.
By 28 June Seoul had fallen, the North Koreans had closed up along the Han River to a point about 20 miles east of Seoul, and had advanced as far as Samchok on the meat coast. By 4 July enemy forces were along the line Suwon-Wonju-Samchok. In withdrawing, the Republic of Korea ("ROK") forces had suffered such serious losses that their attempts to regroup and retain order were almost futile.
On 25 June 1950 the United Nations Security Council passed a resolution calling "for immediate cessation of hostilities" and "upon the authorities of North Korea to withdraw forthwith their armed forces to the thirty-eighth parallel." When the North Koreans failed to accede to these demands, the Security Council passed a second resolution recommending "that the Members of the United Nations furnish such assistance to the Republic of Korea as may be necessary to repel the armed attack and restore the international peace and security in the area."
President Truman announced on 27 June 1950 the t he had ordered American air and naval forces to give cover and support to the South Korean troops (UN Defensive-27 June to 15 September 1950). On the 28th he authorized the Commander in Chief Far East to use certain supporting ground units in Korea, and authorized the U.S. Air Force to conduct missions on specific targets in North Korea. On the 30th the President further authorized the C. in C. Far East to use all forces available to him to repel the invasion, and ordered a naval blockade of the entire coast of Korea.
A Security Council resolution of 7 July 1950 recommended the establishment of a unified command in Korea and requested the United States to designate a commander of these forces. On 8 July President Truman announced the appointment of General of the Army Douglas MacArthur as Commander in Chief, United Nations Command (CINCUNC). On 14 July President Rhee placed all ROK security forces under the United Nations commander, an act which consolidated the anti-Communist forces under the United Nations Commend for the purpose of repelling the Communist aggression.
The U.S. forces at MacArthur's disposal included the four divisions in Japan-the 1st Cavalry Division and the 7th, 24th, and 25th Infantry Divisions-and the 29th Regimental Combat Team in Okinawa. The divisions were lacking a third of their infantry and artillery units and almost all their armor units. Existing units were far under strength. Weapons and equipment were war-worn relics of World War II, and ammunition reserves amounted to only a 45-day supply. None of the divisions had reached full combat efficiency, since intensive training had been largely neglected because of occupation duties.
Initial U.S. strategy, dictated by the speed of the North Korean drive and the state of American unpreparedness, was one of trading space for time. On 2 July 1950 Task Force Smith, composed of two rifle companies and a few supporting units of the 24th Division, was flown from Japan to Pusan and moved by train and truck to defensive positions near Osan, 30 miles south of Seoul. Its mission was to fight a delaying action to gain time for the movement of more troops from Japan. On 5 July this small force was attacked by a North Korean division supported by 30 tanks and compelled to withdraw, after a stubborn defense, with heavy losses of men and equipment.
By this time the remaining elements of the 24th Division had reached Korea and were in defensive positions along the Kum River, north of Taejon and 60 miles south of Osan. ROK elements held positions to the east, some 50 miles above Taegu. By 15 July the 25th Division had arrived in Korea and was positioned east of the 24th Division. The 1st Cavalry Division arrived and closed in the P'chang-dong area on 18-19 July. Lt. Gen. Walton H. Walker, Commander of the U.S. Eighth Army, had been placed in command of all U.S. ground troops in Korea on 13 July, and, at the request of President Rhee, of the South Korean Army as well. As the ground troops of other U.N. members reached Korea, they also were placed under Walker's command.
North Korean forces crossed the Kum River and captured Taejon, an important communications center, on 20 July. U.S. and ROK troops continued to withdraw steadily to the southeast under constant North Korean pressure. During the withdrawal our Army's 3.5-inch rocket launcher was used (for the first time on a battlefield) with highly successful results against North Korean tanks. It was in this period that the 24th Division commander, Maj. Gen. William F. Dean, was reported missing when North Korean tanks broke through the forward unite of his division. It was learned later that he had been captured about 35 miles south of Taejon on 25 August.
The final days of July 1950 witnessed a series of hard-fought battles all along the 200-mile front of the United Nations perimeter. The northern front, a line running inland from Yongdok through Andong, Yech'on, Hamch'ong, and Hwanggan to Kumch'on, was defended at critical points by ROK troops and the U.S. 25th Division. The 1st Cavalry Division was battling on the west flank to keep the Yongdong-Kumch'on-Taegu rail line open. To block the southwestern approaches to Pusan, which the enemy was threatening, the 29th RCT advanced to Chinju, but was ambushed by a North Korean division and suffered heavy losses. Enemy pressure continued from Yosu and Chinju in the southwest to Kwan-ni on the Taejon-Taegu railroad, thence northeast through Yech'on to Yongdok on the Sea of Japan.
By the beginning of August the U.S. and ROK forces had withdrawn behind the Naktong River, a position which the U.N. Command was determined to hold. The area held in southeastern Korea resembled a rectangle, the southwestern side of which was guarded by the 24th and 25th Divisions to prevent a breakthrough to Masan. The 1st Cavalry Division was deployed on the western front to guard the Taegu railroad approaches. The northern front was defended by ROK divisions from a point south of Hamch'ang to a point just south of Yongdok on the east coast.
Early in August General Walker declared the strategy of trading space for time to be at an end, and ordered a final stand along this 140-mile perimeter around the port of Pusan, which had become a well-stocked Eighth Army supply base and the hub of a rail and road net leading to the battle front. By now the enemy's lengthened supply lines were under constant air attack, enemy naval opposition had been wiped out, and the blockade of the Korean coast had been clamped tight.
During the next month and a half, fourteen North Korean divisions dissipated their strength in piecemeal attacks against the Pusan perimeter. Walker, by rapidly shuttling his forces to meet the greatest threats, inflicted heavy casualties on the North Koreans and prevented serious penetrations. The enemy, determined to annihilate the Eighth Army and take Taegu and Pusan, massed for a two-pronged attack across the Naktong, one prong from the west and the other from the southwest. The principal actions were fought along the river from Waegwan south through Song-dong and Ch'irhyon-ni to the junction of the Naktong and Nam Rivers, and southwest toward Haman and Chinju.
While U.S. troops were fighting along the banks of the Naktong, other battles took place in the southwest. A veteran North Korean division, which had been concentrated for an assault upon Susan and Pusan, was hit by Task Force Kean. Named for the 25th Division Commander, the Task Force was composed of the 5th RCT, the 35th RCT of the 25th Division, the 1st Marine Brigade, and a ROK battalion. It opened a strong counteroffensive on 7 August 1950 to secure the left funk of the perimeter and prevent the enemy from driving on Pusan. Overcoming initial heavy resistance, it defeated the North Koreans and by 11 August commanded the high ground to the east of Chinju.
On the eastern flank of the perimeter the town of Yongdok was lost by ROK units, some of which then had to be evacuated by sea. On 12 August the port of P'chang-dong was attacked by enemy forces led by tanks which mounted screaming sirens. This force poured through a break in the R0K lines and linked up with North Korean advance agents in the port. These agents, disguised as innocent-looking refugees, carried mortars, machineguns, and other weapons in oxcarts, on A-frames and on their persons. While a force of North Koreans took P'chang-dong, the adjoining airstrip, of great importance to the U.N. forces as a base for tactical aircraft. On 13 August the danger was so pressing that all aircraft were evacuated. Within the next five days, however, ROK troops and a small U.S. task force recaptured P'chang-dong and returned it to U.N. control.
During this time a much larger force of North Koreans breached the U.N. positions at some paints in the Naktong River sector, but failed in their attempt to capture the rail junctions at Taegu. To hold a line near the river, Walker rearranged the defensive positions of the 24th and 25th Infantry Divisions, the 1st Cavalry Division, and the 1st Marine Brigade, deploying them in a manner which assigned combat zones of 15-30 miles to each division.
The enemy, continuing his efforts to crack the perimeter, massed several divisions above Waegwan to assault Taegu from the north. Despite a bombing raid in which U.N. air forces dropped 850 tons of bombs on the suspected enemy concentration area, the North Koreans launched a powerful attack which carried through the ROK positions and threatened Taegu. Stalwart defense and swift countermeasures in this area on 19 August saved Taegu from almost certain capture, parried the enemy 's three-pronged thrust at the city, and stopped the momentum of the North Korean offensive.
Shortly before midnight on 31 August enemy forces again attacked the Naktong River Line, this time in tremendous force. Disregarding very heavy casualties from U.N. air force bombing and strafing, they mounted a strong offensive against the entire Pusan beachhead from Haman in the south to P'chang-dong in the northern sector. The port of P'chang-dong was captured on 6 September, but again the Communists failed to capture the airfield. Waegwan and the "walled city" of Kasan were lost as the U.N. defenders fell back for a last ditch stand at Taegu. Between 4 and 11 September the enemy made important gains along the Naktong in some of the heaviest fighting of the war; but U.N. forces blunted the drive on Taegu and began to show slow progress of their own against very strong enemy resistance.
On the southern front the North Korean offensive, which opened with a massive artillery barrage near Haman, struck the 25th Division with tanks and waves of infantry, imperiling its forward positions. However, although the enemy had made impressive gains along the U.N. perimeter and General Walker still had to shuttle his units from one critical area to another, a strong beachhead remained in the hands of the U.N. Command.
By mid-August the offensive capability of the Eighth Army had been augmented by the arrival of the U.S. 2d Division, the 1st Marine Brigade, four battalions of medium tanks from the United States, and the 5th RCT from Hawaii. Before the month was out, five ROK divisions were restored to some semblance of order, and Great Britain committed the 27th Brigade from Hong Kong. With the arrival of these reinforcements an attempt could now be made to end the U.N. withdrawal and to begin a U.N. offensive in southeastern Korea.
Criteria The Army Distinguished Service Medal may be awarded to any person who, while serving in any capacity with the United States Army, performs exceptionally meritorious service in a duty of great responsi... The Army Distinguished Service Medal may be awarded to any person who, while serving in any capacity with the United States Army, performs exceptionally meritorious service in a duty of great responsibility. The individual's performance must merit recognition for services which are clearly exceptional, and the performance of normal duties in an exceptional manner by itself will not justify an award of the Army Distinguished Service Medal MoreHide
Criteria The Silver Star may be awarded to any person who, while serving in any capacity with the Armed Forces of the United States, is cited for gallantry in action, against an enemy of the United States whil... The Silver Star may be awarded to any person who, while serving in any capacity with the Armed Forces of the United States, is cited for gallantry in action, against an enemy of the United States while engaged in military operations involving conflict with an opposing foreign force or, while serving with friendly foreign forces engaged in armed conflict against an opposing armed force in which the United States is not a belligerent party.The required gallantry, while of a lesser degree than that required for the award of a Distinguished Service Cross, Navy Cross, or Air Force Cross, must nevertheless have been performed with marked distinction. MoreHide
Criteria The Legion of Merit is awarded to members of the Armed Forces of the United States without degree for exceptionally outstanding conduct in the performance of meritorious service to the United States. ... The Legion of Merit is awarded to members of the Armed Forces of the United States without degree for exceptionally outstanding conduct in the performance of meritorious service to the United States. The performance must merit recognition by individuals in a key position which was performed in a clearly exceptional manner. MoreHide
Criteria The Bronze Star Medal may be awarded to individuals who, while serving in any capacity with the Armed Forces of the United States in a combat theater, distinguish themselves by heroism, outstanding ac... The Bronze Star Medal may be awarded to individuals who, while serving in any capacity with the Armed Forces of the United States in a combat theater, distinguish themselves by heroism, outstanding achievement, or by meritorious service not involving aerial flight. MoreHide
Criteria The Army of Occupation Medal is a military award of the United States military which was established by the United States War Department on 5 April 1946. The medal was created in the aftermath of the ... The Army of Occupation Medal is a military award of the United States military which was established by the United States War Department on 5 April 1946. The medal was created in the aftermath of the Second World War to recognize those who had performed occupation service in either Germany, Italy, Austria, or Japan. MoreHide
Description The European-Mediterranean-Middle East Theater was a major theater of operations during the Second World War (between December 7, 1941, and March 2, 1946). The vast size of Europe, Mediterranean and MThe European-Mediterranean-Middle East Theater was a major theater of operations during the Second World War (between December 7, 1941, and March 2, 1946). The vast size of Europe, Mediterranean and Middle East theatre saw interconnected naval, land, and air campaigns fought for control of the Mediterranean, North Africa, the Horn of Africa, the Middle East, and Europe. The fighting in this theatre lasted from 10 June 1940, when Italy entered the war on the side of Germany, until 2 May 1945 when all Axis forces in Italy surrendered. However, fighting would continue in Greece – where British troops had been dispatched to aid the Greek government – during the early stages of the Greek Civil War.
The British referred to this theatre as the Mediterranean and Middle East Theatre (so called due to the location of the fighting and the name of the headquarters that controlled the initial fighting: Middle East Command) while the Americans called the theatre of operations the Mediterranean Theatre of War. The German official history of the fighting is dubbed 'The Mediterranean, South-East Europe, and North Africa 1939–1942'. Regardless of the size of the theatre, the various campaigns were not seen as neatly separated areas of operations but part of one vast theatre of war.
Fascist Italy aimed to carve out a new Roman Empire, while British forces aimed initially to retain the status quo. Italy launched various attacks around the Mediterranean, which were largely unsuccessful. With the introduction of German forces, Yugoslavia and Greece were overrun. Allied and Axis forces engaged in back and forth fighting across North Africa, with Axis interference in the Middle East causing fighting to spread there. With confidence high from early gains, German forces planned elaborate attacks to be launched to capture the Middle East and then to possibly attack the southern border of the Soviet Union. However, following three years of fighting, Axis forces were defeated in North Africa and their interference in the Middle East was halted. Allied forces then commenced an invasion of Southern Europe, resulting in the Italians switching sides and deposing Mussolini. A prolonged battle for Italy took place, and as the strategic situation changed in southeast Europe, British troops returned to Greece.
The theatre of war, the longest during the Second World War, resulted in the destruction of the Italian Empire and altered the strategic position of Germany resulting in numerous German divisions being deployed to Africa and Italy and total losses (including those captured upon final surrender) being over half a million. Italian losses, in the theatre, amount to around to 177,000 men with a further several hundred thousand captured during the process of the various campaigns. British losses amount to over 300,000 men killed, wounded, or captured, and total American losses in the region amounted to 130,000.... More
Description The American Theater was a minor area of operations during World War II. This was mainly due to both North and South America's geographical separation from the central theaters of conflict in Europe aThe American Theater was a minor area of operations during World War II. This was mainly due to both North and South America's geographical separation from the central theaters of conflict in Europe and Asia. Thus, any threat by the Axis Powers to invade the mainland United States or other areas was considered negligible, allowing for American resources to be deployed in overseas theaters.
This article includes attacks on continental territory, extending 200 miles (320 km) into the ocean, which is today under the sovereignty of the United States, Canada, Mexico, and several other smaller states, but excludes military action involving the Danish territory of Greenland, the Hawaiian Islands, and the Aleutian Islands. The most well known battles in North America during World War II were the Attack on Pearl Harbor (the first attack on US soil since the Battle of Ambos Nogales), the Aleutian Islands Campaign, the Battle of the St. Lawrence, and the attacks on Newfoundland.... More
Criteria The Silver Star may be awarded to any person who, while serving in any capacity with the Armed Forces of the United States, is cited for gallantry in action, against an enemy of the United States whil... The Silver Star may be awarded to any person who, while serving in any capacity with the Armed Forces of the United States, is cited for gallantry in action, against an enemy of the United States while engaged in military operations involving conflict with an opposing foreign force or, while serving with friendly foreign forces engaged in armed conflict against an opposing armed force in which the United States is not a belligerent party.The required gallantry, while of a lesser degree than that required for the award of a Distinguished Service Cross, Navy Cross, or Air Force Cross, must nevertheless have been performed with marked distinction. MoreHide
Criteria The European-African-Middle Eastern Campaign Medal was awarded for for qualifying service within the European-African-Middle Eastern Theater of Operations between December 7, 1941, and March 2, 1946, ... The European-African-Middle Eastern Campaign Medal was awarded for for qualifying service within the European-African-Middle Eastern Theater of Operations between December 7, 1941, and March 2, 1946, under any of the following conditions: On permanent assignment within the European-African-Middle Eastern Theater; or, For service in a passenger status or on temporary duty status for 30 consecutive days or 60 non-consecutive days; or, For service in active combat in the European-African-Middle Eastern Theater of Operations against the enemy and awarded a combat decoration or furnished a certificate by the commanding general of a corps, higher unit, or independent force that the individual actually participated in combat. MoreHide
Criteria The American Campaign Medal was awarded for For thirty days service outside the Continental United States but within the American Theater of Operations between December 7, 1941, and March 2, 1946; or,... The American Campaign Medal was awarded for For thirty days service outside the Continental United States but within the American Theater of Operations between December 7, 1941, and March 2, 1946; or, an aggregate service of one year within the Continental United States during the same period under the following circumstances: On permanent assignment outside the continental limits of the United States; or, On permanent assignment as a member of a crew of a vessel sailing ocean waters for a period of 30 consecutive days or 60 non-consecutive days; or, For service outside the continental limits of the United States in a passenger status or on temporary duty for 30 consecutive days or 60 non consecutive days; or, For service in active combat against the enemy and awarded a combat decoration or furnished a certificate by the commanding general of a corps, higher unit, or independent force that the individual actually participated in combat; or, For service within the continental limits of the United States for an aggregate period of one year. MoreHide
Criteria a. The ADSM was established by EO 8808, announced in War Department Bulletin 17, 1941. It is awarded for service between 8 September 1939 and 7 December 1941 under orders to active duty for a period o... a. The ADSM was established by EO 8808, announced in War Department Bulletin 17, 1941. It is awarded for service between 8 September 1939 and 7 December 1941 under orders to active duty for a period of 12 months or longer.
b. A clasp, with the inscription "Foreign Service", is worn on the ADSM to denote service outside the continental limits of the United States, including service in Alaska, as a member of a crew of a vessel sailing ocean waters, flights over ocean waters, or as an assigned member of an organization stationed outside the continental limits of the United States. Possession of a clasp is denoted by the wearing of a bronze service star on the service ribbon. MoreHide
Criteria The World War I Victory Medal was awarded for military service during the First World War. It was awarded for active service between April 6, 1917, and November 11, 1918; for service with the American... The World War I Victory Medal was awarded for military service during the First World War. It was awarded for active service between April 6, 1917, and November 11, 1918; for service with the American Expeditionary Forces in European Russia between November 12, 1918, and August 5, 1919; or for service with the American Expeditionary Forces in Siberia between November 23, 1918, and April 1, 1920. MoreHide
Description The United States of America declared war on the German Empire on April 6, 1917. The U.S. was an independent power and did not officially join the Allies. It closely cooperated with them militarily buThe United States of America declared war on the German Empire on April 6, 1917. The U.S. was an independent power and did not officially join the Allies. It closely cooperated with them militarily but acted alone in diplomacy. The U.S. made its major contributions in terms of supplies, raw material and money, starting in 1917. American soldiers under General John J. Pershing, commander of the American Expeditionary Force (AEF), arrived in large numbers on the Western Front in the summer of 1918. They played a major role until victory was achieved on November 11, 1918. Before entering the war, the U.S had remained neutral, though it had been an important supplier to Great Britain and the other Allied powers. During the war, the U.S mobilized over 4 million military personnel and suffered 110,000 deaths, including 43,000 due to the influenza pandemic. The war saw a dramatic expansion of the United States government in an effort to harness the war effort and a significant increase in the size of the U.S. military. After a slow start in mobilising the economy and labour force, by spring 1918 the nation was poised to play a role in the conflict. Under the leadership of President Woodrow Wilson, the war represented the climax of the Progressive Era as it sought to bring reform and democracy to the world,[citation needed] although there was substantial public opposition to United States entry into the war.
Although the United States declared war on Germany on April 6, 1917, it did not initially declare war on the other Central Powers, a state of affairs that Woodrow Wilson described as an "embarrassing obstacle" in his State of the Union speech.[26] Congress declared war on the Austro-Hungarian Empire on December 17, 1917, but never made declarations of war against the other Central Powers, Bulgaria, the Ottoman Empire or the various Co-belligerents allied with the central powers, thus the United States remained uninvolved in the military campaigns in central, eastern and southern Europe, the Middle East, the Caucasus, North Africa, Sub-Saharan Africa, Asia and the Pacific.
The United States as late as 1917 maintained only a small army, smaller than thirteen of the nations and empires already active in the war. After the passage of the Selective Service Act in 1917, it drafted 2.8 million men into military service. By the summer of 1918 about a million U.S. soldiers had arrived in France, about half of whom eventually saw front-line service; by the Armistice of November 11 approximately 10,000 fresh soldiers were arriving in France daily. In 1917 Congress gave U.S. citizenship to Puerto Ricans when they were drafted to participate in World War I, as part of the Jones Act. In the end Germany miscalculated the United States' influence on the outcome of the conflict, believing it would be many more months before U.S. troops would arrive and overestimating the effectiveness of U-boats in slowing the American buildup.
The United States Navy sent a battleship group to Scapa Flow to join with the British Grand Fleet, destroyers to Queenstown, Ireland and submarines to help guard convoys. Several regiments of Marines were also dispatched to France. The British and French wanted U.S. units used to reinforce their troops already on the battle lines and not to waste scarce shipping on bringing over supplies. The U.S. rejected the first proposition and accepted the second. General John J. Pershing, American Expeditionary Forces (AEF) commander, refused to break up U.S. units to serve as mere reinforcements for British Empire and French units. As an exception, he did allow African-American combat regiments to fight in French divisions. The Harlem Hellfighters fought as part of the French 16th Division, earning a unit Croix de Guerre for their actions at Château-Thierry, Belleau Wood, and Séchault.
Impact of US forces on the war
On the battlefields of France in spring 1918, the war-weary Allied armies enthusiastically welcomed the fresh American troops. They arrived at the rate of 10,000 a day, at a time when the Germans were unable to replace their losses. After British Empire, French and Portuguese forces had defeated and turned back the powerful final German offensive (Spring Offensive of March to July, 1918), the Americans played a role in the Allied final offensive (Hundred Days Offensive of August to November). However, many American commanders used the same flawed tactics which the British, French, Germans and others had abandoned early in the war, and so many American offensives were not particularly effective. Pershing continued to commit troops to these full- frontal attacks, resulting in high casualties against experienced veteran German and Austrian-Hungarian units. Nevertheless, the infusion of new and fresh U.S. troops greatly strengthened the Allies' strategic position and boosted morale. The Allies achieved victory over Germany on November 11, 1918 after German morale had collapsed both at home and on the battlefield.... More
