1921 to 1933 the Division was structured around the horse riding concept in defined Regiments.
1933 to 1943 the Division was structured around the Triangle mechanized and motorized concept.
1943 to 1949 the Division was changed to the square concept as mainly a Infantry Division for fighting in the jungles of the Pacific.
1949 to 1957 The Division was changed to the Triangular Division. The 5th, 7th and 8th Cavalry Regiments were retained and the 12th Cavalry Regiment was deactivated. This was for Korean War and duty on the Korean DMZ.
1957 to 1964 The Division was changed to the Pentomic structure into Battle Groups
1965 to 1971 The Division became Air Mobile structure as they deployed to Vietnam.
1971 to 1975 The Division was configured into the TRICAP (Triple Capability) Division was organized with Armored, Infantry and Air Cavalry Brigades.
1975 to 2001 The division was converted to an Armored Division.
2001 to 2005 The Division had initiated a series of unit change overs of the division organization and equipment replacements to support and field the FORCE XXI integrated combat system capabilities.
2005 to 2013 The division Division was reorganized and transitioned to a (Modular) Modified Table of Organization and Equipment (MTOE) Unit of Action.
2013 to 2016 The Division implementing ARFORGEN, a transformational force generation model. This returned the Division Artillery, The 4th BCT was inactivated, The Sustainment Brigade was renamed and added, All STBs within the Division were inactivated.
2016 to present The Army announced a pilot program, 'associated units', in which a National Guard or Reserve unit would now train with a specific active Army formation. These units would wear the patch of the specific Army division before their deployment to a theater.
Notable Persons
Korean War MOH 1950 -
1LT Samuel Streit Coursen Awarded for actions during the Korean War
The President of the United States of America, in the name of Congress, takes pride in presenting the Medal of Honor (Posthumously) to First Lieutenant (Infantry) Samuel Streit Coursen, United States Army, for conspicuous gallantry and intrepidity above and beyond the call of duty while serving with Company C, 1st Battalion, 5th Cavalry Regiment, 1st Cavalry Division, in action against enemy aggressor forces at Kaesong, Korea, on 12 October 1950.
While Company C was attacking Hill 174 under heavy enemy small-arms fire, First Lieutenant Coursen's platoon received enemy fire from close range. The platoon returned the fire and continued to advance. During this phase one his men moved into a well-camouflaged emplacement, which was thought to be unoccupied, and was wounded by the enemy who were hidden within the emplacement.
Seeing the soldier in difficulty he rushed to the man's aid and, without regard for his personal safety, engaged the enemy in hand-to-hand combat in an effort to protect his wounded comrade until he himself was killed. When his body was recovered after the battle seven enemy dead were found in the emplacement. As the result of First Lieutenant Coursen's violent struggle several of the enemies' heads had been crushed with his rifle. His aggressive and intrepid actions saved the life of the wounded man, eliminated the main position of the enemy roadblock, and greatly inspired the men in his command.
First Lieutenant Coursen's extraordinary heroism and intrepidity reflect the highest credit on himself and are in keeping with the honored traditions of the military service.
General Orders: Department of the Army, General Orders No. 57 (August 2, 1951)
Action Date: 12-Oct-50
Service: Army
Rank: First Lieutenant
Company: Company C
Battalion: 1st Battalion
Regiment: 5th Cavalry Regiment
Division: 1st Cavalry Division
The President of the United States of America, in the name of Congress, takes pride in presenting the Medal of Honor (Posthumously) to First Lieutenant (Infantry) Robert Milton McGovern, United States Army, for conspicuous gallantry and intrepidity at the risk of life above and beyond the call of duty while serving with Company A, 5th Cavalry Regiment, 1st Cavalry Division, in action against enemy aggressor forces at Kamyangjan-ni, Korea, on 30 January 1951.
As First Lieutenant McGovern led his platoon up a slope to engage hostile troops emplaced in bunker-type pillboxes with connecting trenches, the unit came under heavy machinegun and rifle fire from the crest of the hill, approximately 75 yards distant. Despite a wound sustained in this initial burst of withering fire, First Lieutenant McGovern, assured the men of his ability to continue on and urged them forward. Forging up the rocky incline, he fearlessly led the platoon to within several yards of its objective when the ruthless foe threw and rolled a vicious barrage of hand grenades on the group and halted the advance. Enemy fire increased in volume and intensity and First Lieutenant McGovern realizing that casualties were rapidly increasing and the morale of his men badly shaken, hurled back several grenades before they exploded.
Then, disregarding his painful wound and weakened condition he charged a machinegun emplacement which was raking his position with flanking fire. When he was within ten yards of the position a burst of fire ripped the carbine from his hands, but, undaunted, he continued his lone-man assault and, firing his pistol and throwing grenades, killed seven hostile soldiers before falling mortally wounded in front of the gun he had silenced.
First Lieutenant McGovern's incredible display of valor imbued his men with indomitable resolution to avenge his death. Fixing bayonets and throwing grenades, they charged with such ferocity that hostile positions were overrun and the enemy routed from the hill.
The inspirational leadership, unflinching courage, and intrepid actions of First Lieutenant McGovern reflected utmost glory on himself and the honored tradition of the military services.
General Orders: Department of the Army, General Orders No. 2 (January 8, 1952)
Action Date: 30-Jan-51
Service: Army
Rank: First Lieutenant
Company: Company A
Regiment: 5th Cavalry Regiment
Division: 1st Cavalry Division
COLONEL LLOYD L. (SCOOTER) BURKE, (then First Lieutenant) U.S. Army, Company G, 5th Cavalry Regiment, 1st Cavalry Division, Near Chong-dong, Korea, 28 October 1951, distinguished himself by conspicuous gallantry and outstanding courage above and beyond the call of duty in action against the enemy. Intense enemy fire had pinned down leading elements of his company committed to secure commanding ground when 1st Lt. Burke left the command post to rally and urge the men to follow him toward 3 bunkers impeding the advance. Dashing to an exposed vantage point he threw several grenades at the bunkers, then, returning for an M1 rifle and adapter, he made a lone assault, wiping out the position and killing the crew. Closing on the center bunker he lobbed grenades through the opening and, with his pistol, killed 3 of its occupants attempting to surround him. Ordering his men forward he charged the third emplacement, catching several grenades in midar and hurling them back at the enemy. Inspired by his display of valor his men stormed forward, overran the hostile position, but were again pinned down by increased fire. Securing a light machine gun and 3 boxes of ammunition, 1st Lt. Burke dashed through the impact area to an open knoll, set up his gun and poured a crippling fire into the ranks of the enemy, killing approximately 75. Although wounded, he ordered more ammunition, reloading and destroying 2 mortar emplacements and a machine gun position with his accurate fire. Cradling the weapon in his arms he then led his men forward, killing some 25 more of the retreating enemy and securing the objective. 1st Lt. Burke's heroic action and daring exploits inspired his small force of 35 troops. His unflinching courage and outstanding leadership reflect the highest credit upon himself, the infantry, and the U.S. Army.
Vietnam War MOH 1965 -
LTC Bruce Crandall On February 26, 2007, Crandall was awarded the Medal of Honor by President George Bush for his actions at the Battle of la Drang.
For conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty: Major Bruce P. Crandall distinguished himself by extraordinary heroism as a Flight Commander in the Republic of Vietnam, while serving with Company A, 229th Assault Helicopter Battalion, 1st Cavalry Division (Airmobile). On 14 November 1965, his flight of sixteen helicopters was lifting troops for a search and destroy mission from Plei Me, Vietnam, to Landing Zone X-Ray in the Ia Drang Valley. On the fourth troop lift, the airlift began to take enemy fire, and by the time the aircraft had refueled and returned for the next troop lift, the enemy had Landing Zone X-Ray targeted. As Major Crandall and the first eight helicopters landed to discharge troops on his fifth troop lift, his unarmed helicopter came under such intense enemy fire that the ground commander ordered the second flight of eight aircraft to abort their mission. As Major Crandall flew back to Plei Me, his base of operations, he determined that the ground commander of the besieged infantry battalion desperately needed more ammunition. Major Crandall then decided to adjust his base of operations to Artillery Firebase Falcon in order to shorten the flight distance to deliver ammunition and evacuate wounded soldiers. While medical evacuation was not his mission, he immediately sought volunteers and with complete disregard for his own personal safety, led the two aircraft to Landing Zone X-Ray. Despite the fact that the landing zone was still under relentless enemy fire, Major Crandall landed and proceeded to supervise the loading of seriously wounded soldiers aboard his aircraft. Major Crandall's voluntary decision to land under the most extreme fire instilled in the other pilots the will and spirit to continue to land their own aircraft, and in the ground forces the realization that they would be resupplied and that friendly wounded would be promptly evacuated. This greatly enhanced morale and the will to fight at a critical time. After his first medical evacuation, Major Crandall continued to fly into and out of the landing zone throughout the day and into the evening. That day he completed a total of 22 flights, most under intense enemy fire, retiring from the battlefield only after all possible service had been rendered to the Infantry battalion. His actions provided critical resupply of ammunition and evacuation of the wounded. Major Crandall's daring acts of bravery and courage in the face of an overwhelming and determined enemy are in keeping with the highest traditions of the military service and reflect great credit upon himself, his unit, and the United States Army.
Vietnam War MOH 1968 -
SGT John Noble Holcomb Sergeant Holcomb's official Medal of Honor citation reads:
For conspicuous gallantry and intrepidity in action at the risk of his life above and beyond the call of duty. Sgt. Holcomb distinguished himself while serving as a squad leader in Company D during a combat assault mission. Sgt. Holcomb's company assault had landed by helicopter and deployed into a hasty defensive position to organize for a reconnaissance-in-force mission when it was attacked from 3 sides by an estimated battalion-size enemy force. Sgt. Holcomb's squad was directly in the path of the main enemy attack. With complete disregard for the heavy fire, Sgt. Holcomb moved among his men giving encouragement and directing fire on the assaulting enemy. When his machine gunner was knocked out, Sgt. Holcomb seized the weapon, ran to a forward edge of the position, and placed withering fire on the enemy. His gallant actions caused the enemy to withdraw. Sgt. Holcomb treated and carried his wounded to a position of safety and reorganized his defensive sector despite a raging grass fire ignited by the incoming enemy mortar and rocket rounds. When the enemy assaulted the position a second time, Sgt. Holcomb again manned the forward machine gun, devastating the enemy attack and forcing the enemy to again break contact and withdraw. During the enemy withdrawal an enemy rocket hit Sgt. Holcomb's position, destroying his machine gun and severely wounding him. Despite his painful wounds, Sgt. Holcomb crawled through the grass fire and exploding mortar and rocket rounds to move the members of his squad, everyone of whom had been wounded, to more secure positions. Although grievously wounded and sustained solely by his indomitable will and courage, Sgt. Holcomb as the last surviving leader of his platoon organized his men to repel the enemy, crawled to the platoon radio and reported the third enemy assault on his position. His report brought friendly supporting fires on the charging enemy and broke the enemy attack. Sgt. Holcomb's inspiring leadership, fighting spirit, in action at the cost of his life were in keeping with the highest traditions of the military service and reflect great credit on himself, his unit, and the U.S. Army.
Vietnam War MOH 1970 -
SP 4 John Baca Medal of Honor Official Citation reads:
For conspicuous gallantry and intrepidity in action at the risk of his life above and beyond the call of duty. Sp4c. Baca, Company D, distinguished himself while serving on a recoilless rifle team during a night ambush mission. A platoon from his company was sent to investigate the detonation of an automatic ambush device forward of his unit's main position and soon came under intense enemy fire from concealed positions along the trail. Hearing the heavy firing from the platoon position and realizing that his recoilless rifle team could assist the members of the besieged patrol, Sp4c. Baca led his team through the hail of enemy fire to a firing position within the patrol's defensive perimeter. As they prepared to engage the enemy, a fragmentation grenade was thrown into the midst of the patrol. Fully aware of the danger to his comrades, Sp4c. Baca unhesitatingly, and with complete disregard for his own safety, covered the grenade with his steel helmet and fell on it as the grenade exploded, thereby absorbing the lethal fragments and concussion with his body. His gallant action and total disregard for his personal well-being directly saved 8 men from certain serious injury or death. The extraordinary courage and selflessness displayed by Sp4c. Baca, at the risk of his life, are in the highest traditions of the military service and reflect great credit on him, his unit, and the U.S. Army.
OIF Silver Star 2004 -
CPL Jose Alfredo Velez Corporal Jose Alfredo "Freddy" Velez, United States Army, was awarded the Silver Star (Posthumously) for conspicuous gallantry and intrepidity in action while serving with Company A, 2d Battalion, 7th Infantry Regiment, 1st Cavalry Division, during combat operations in support of Operation IRAQI FREEDOM on 4 November 2004. When his unit was attacked in Fallujah, Iraq, Corporal Velez was killed by a sniper as he stood over wounded comrades in efforts to shield them from enemy fire. Corporal Velez's gallant actions and dedicated devotion to duty, without regard for his own life, were in keeping with the highest traditions of military service and reflect great credit upon himself, his unit, and the United States Army.
OIF Silver Star 2007 -
CW3 Cornell C. Chao The President of the United States takes pride in presenting the Silver Star Medal (Posthumously) to Cornell C. Chao, Chief Warrant Officer 3, U.S. Army, for conspicuous gallantry and intrepidity in action against the enemy while serving as Pilot of an AH-64D Longbow Apache Helicopter with the 4th Battalion, 227th Aviation Regiment, 1st Air Cavalry Brigade, 1st Cavalry Division, during combat operations in support of Operation IRAQI FREEDOM, on 28 January 2007, near An Najaf, Iraq. On that date, Chief Warrant Officer Three Chao was dispatched to the city of An Najaf to assist and support coalition troops who had come in contact with enemy forces. Arriving support aircraft was attacked with heavy machine gun fire and rocket propelled grenades and Chief Warrant Officer Three Chao placed his helicopter in the direct line of enemy fire so that another air crew that was under attack could maneuver out of danger. Over the next fifteen minutes he bravely flew in the face of intense enemy fire to support the coalition ground forces until his aircraft was struck and crashed, killing Chief Warrant Officer Three Chao.
Description On 1 November Chinese elements were identified south of the Changjin Reservoir, and within ten days twelve divisions of the Chinese Communist Forces were identified. In the northwest, strong enemy attacks against the Eighth Army smashed the ROK divisions. Very hard fighting took place near Ch'osan, Unsan, and Tokch'on. While the 24th Division pulled back to Chongju on the west coast, the 1st Cavalry and 2d Divisions fought along the Ch'ongch'on River. In the air over Korea, U.N. pilots were opposed for the first time by speedy Russian MIG-15 Jet fighters.
By 10 November, as the Chinese attacks were abating, the Eighth Army and the X Corps conducted only small-scale operations, and a comparative lull hung over much of the front. By 21 November elements of the U.S. 7th Division occupied Hyesanjin on the Yalu River in northeastern Korea, the most northerly point to be reached by U.S. forces during the war. The ROK Capital Division meanwhile progressed rapidly up the east coast to the Naman-So-dong area. By 24 November the U.N. positions extended from So-dong in the northeast to Hyesanjin on the Yalu, and thence in a southwesterly direction through the areas around Sang-ni, Handae, Yudam-ni, Yongwen, Ipsok, Patch'on and south of Chongju to the Yellow Sea.
Previous to the entry of Chinese forces in North Korea, MacArthur had ordered the Eighth Army and the X Corps on 24 October to attack toward the Manchurian border and restore peace in Korea before the onset of winter. The difficulty of securing adequate logistical support delayed the attack. In the latter part of the month, brief clashes with Chinese troops posed a new threat. The purpose and extent of the Chinese intervention was not yet clear; but in the face of this new opposition, Walker had withdrawn his extended forces back to the lower bank of the Ch'onch'on River, leaving only a small bridgehead above Sinanju.
The fact of Chinese participation in the conflict caused MacArthur to reconsider his plans for an all-out attack to the Yalu River, but not to abandon them. Walker's forces were to move northward through western and central Korea, while Almond's troops were to attack to the northwest to cut the enemy line of communications and give maximum assistance to the Eighth Army. On 24 November the Eighth Army, with the ROK II Corps, launched its planned offensive. For the first twenty-four hours little enemy opposition was encountered, but on the next day enemy troops initiated a violent counterattack against the Eighth Army in the mountainous territory surrounding the central North Korean town of Tokch'on. The X Corps began its attack early on 27 November, and had made slight advances before evening, when a second enemy force, moving down both sides of the Changjin Reservoir, struck at the 1st Marine Division and elements of the U.S. 7th Division.
It was quickly apparent that the bulk of the enemy forces were organized Chinese Communist units. It was now evident to the UN Commend that the Chinese had amassed two large armies in northern Korea, by marching them from Manchuria under cover of darkness and expertly camouflaging them during the day. They were comparatively safe from detection by UN air observers in the rugged mountain terrain, and UN aircraft were prohibited from making reconnaissance flights across the frontier. Thus the strength of the attacking Chinese forces came as a surprise to most of the U.N. Command.
The main enemy effort was directed against the ROK II Corps, which collapsed under the weight of the Chinese assault. As the Communists strove to extend their breakthrough of the U.N. line, Walker rushed his reserve units (the 1st Cavalry Division, the Turkish Brigade, and the British 27th Commonwealth and 29th Independent Infantry Brigades) to the area, but failed to stem the Communist advance. Assaulted by wave after wave of enemy troops, the Eighth Army front withdrew south across the Ch'ongch'on River. These forces, fighting hand to hand with the enemy along the river banks and retreating over reads choked with troops, refugees, trucks, and tanks, suffered heavy losses. The U.S. 2d Division wee assigned to fight a delaying action until other units could retire and regroup in defensive positions near P'yongyang. On 5 December the Eighth Army fell back from P'yongyang to positions about 25 miles south of the city. By the middle of December it had withdrawn below the 38th parallel and formed a defensive perimeter north and east of Seoul.
On 27 November 1950 the Chinese began their offensive against the X Corps, attacking the Marine and 7th Division elements in the Changjin Reservoir area with six divisions. Since the most northerly UN units-the ROK I Corps, the U.S. 17th Infantry Regiment, and other elements at the Yalu-might be cut off by the weight of the Chinese offensive, the X Corps was forced to withdraw these elements. Troops at the reservoir were also ordered to fall back. MacArthur then ordered Almond to concentrate the X Corps in the Hamhung-Hungnam area; and early in December directed the Corps to withdraw to South Korea by a waterborne evacuation.
Most of the Corps reached the port of Hungnam without serious incident. However, some 14,000 men of the 1st Marine and 7th Infantry Divisions were trapped in the Hagaru-Kot'o area and were forced to fight their way to the coast along a narrow escape route. As the main column progressed along the road, a provisional battalion of marines and soldiers, aided by close and efficient air support, cleared the Chinese Communist forces from the high ground which dominated the road. Almond sent Task Force Dog, a reinforced battalion of the 3d Division, forward to Chinhung to relieve the Marine battalion there and to assist the withdrawal by providing support and rear guard action. Air Force, Navy, and Marine cargo planes parachuted daily airdrops of ammunition, food, and medicines to the column, and evacuated battle casualties. Fighter elements bombed and strafed the enemy-held mountainsides and Communist troop concentrations. On 9 December 1950 the two forces met in the mountains a few miles south of Kot'o and both moved toward Hamhung to be evacuated.
The water movement of the X Corps from North Korea required 173 vessels. About 350,000 measurement tons of cargo, including 17,500 vehicles, were salvaged; some 105,000 troops and more than 98,000 civilians were evacuated from Hungnam, Songjin, and Wonsan. Evacuation began on 11 December and was completed on 24 December, despite constant enemy fire and observation.
The Hungnam evacuation left North Korea once again controlled by Communist forces. Before the enemy renewed his attacks, General Walker was killed in an auto accident north of Seoul (23 December 1950). On 26 December Lt. Gen. Matthew B. Ridgway succeeded him in command of the Eighth Army in Korea.
On 30 December MacArthur warned the U.S. Joint Chiefs of Staff that the Chinese Communist forces could drive the U.N. forces out of Korea if they so desired. The United States, although anxious to avoid a full-scale war in Korea, was also determined to resist the Chinese-North Korean aggressors. Therefore the Joint Chiefs ordered MacArthur to defend his positions; to retire, if forced to, through a series of defensive positions as far back as the former Pusan Perimeter Line; to inflict as much damage as possible on the enemy; and to maintain his units intact. If necessary to avoid severe losses, he was authorized to withdraw to Japan.
Within this framework of operations, MacArthur invested General Ridgway with complete authority to plan and execute operations in Korea, and ceased the close supervision which he had formerly exercised over the Eighth Army and the X Corps. The latter, which had heretofore been a separate command, was assigned to the Eighth Army, thus placing all U.N. ground forces under that army's control. By this time fifteen nations of the U.N. had troops in Korea-the United States, Great Britain, Australia, Canada, New Zealand, India, South Africa, France, Greece, the Netherlands, the Philippines, Thailand, Turkey, Belgium, and Sweden. As 1951 began, U.N. ground forces numbered about 495,000, of which 270,000 were ROK troops. The U.N. Command estimated that the enemy had about 486,000 men, 21 Chinese and 12 North Korean divisions, committed to the Korean front, and more than a million enemy troops stationed in reserve near the Yalu.
In late December, Ridgway, in establishing the defensive line along the 38th parallel, concentrated the bulk of the Eighth Army in the central and western sectors because of the obvious enemy concentration above Seoul. The west flank was held by the I Corps; the central sector by the IX Corps; and the ROK I, II, and III Corps held the eastern mountainous sector. The X Corps was reorganizing near Pusan. The 1st Marine Division, until recently a part of the X Corps, was held in Eighth Army reserve.
At daybreak on 1 January 1951, after a night of mortar and artillery bombardment, the enemy launched an attack all along the U.N. line. The main effort was directed against the U.S. I and IX Corps in the west and central sectors. A force of seven Chinese armies and two North Korean corps pushed deeply into the U.N. line toward Seoul in the west and Wonju in the center.
As the offensive gained momentum, Ridgway ordered the U.N. forces to fall back to a line which ran along the south bank of the frozen Han River to Yangp'yang, through Hongch'on and Chunmunjin to the Sea of Japan. A delaying force remained around Seoul to deny the enemy use of the Han River bridges. When the attacking forces, following up their initial success, crossed the Han to the east and west of Seoul, it became clear that the Seoul bridgehead could not be held any longer. Ridgway, following a policy of rolling with the punch rather then risking destruction by defending in place, decided to withdraw south to a line in the vicinity of the 37th parallel on 3 January. This line ran from P'yongt'aek, east through Ansong, northeast to Wonju, and in an irregular trace to the east coast town of Samch'ok. When Seoul fell on 4 January, the port of Inch'on was also evacuated.
After the fall of Seoul, Chinese attacks tapered off in the west. Many enemy units were shifted eastward so as to be in position to attack southwestward behind the U.S. I and IX Corps, and capture Wonju and the railroad and highway between Hongch'on and Pusan, the main U.N. north-south supply route. Wonju was abandoned by U.N. forces on 7 January. By 10 January large numbers of the enemy had phased through the gap and into the defensive zone of the ROK III Corps. To meet this threat Ridgway ordered the 1st Marine Division to prevent the enemy penetration from north of the Andong-Yongdok road on the east, and to protect the supply routes of the ROK units.
In the western sector, which was comparatively quiet, Ridgway planned Operation WOLFHOUND, a reconnaissance in force in the I Corps sector, to reestablish contact and secure more exact information about the enemy. On 15 January the task force-the 27th Infantry Regiment, reinforced-advanced northward along the Seoul highway toward Osan. On the 16th it reached Suwon with practically no opposition. Satisfied by the reconnaissance, the U.N. Command ordered the task force to withdraw south.
By the third week in January the situation in the central and eastern sectors had eased, and pressure on our troops was gradually decreasing. However, although quiet prevailed on the front, air reconnaissance revealed that the enemy was accumulating reserves of supplies and bringing up thousands of replacements.
Awarded for actions during the Korean War
Corporal Jose Alfredo "Freddy" Velez, United States Army, was awarded the Silver Star (Posthumously) for conspicuous gallantry and intrepidity in action while serving with Company A, 2d Battalion, 7th Infantry Regiment, 1st Cavalry Division, during combat operations in support of Operation IRAQI FREEDOM on 4 November 2004. When his unit was attacked in Fallujah, Iraq, Corporal Velez was killed by a sniper as he stood over wounded comrades in efforts to shield them from enemy fire. Corporal Velez's gallant actions and dedicated devotion to duty, without regard for his own life, were in keeping with the highest traditions of military service and reflect great credit upon himself, his unit, and the United States Army.
