They proceeded into north central Indiana to confront the forces of the Shawnee leader Tecumseh and his brother Tenskwatawa, the Prophet, who attacked on the morning of 7 November in the Battle of Tippecanoe, where they were soundly defeated by U.S.

[3]: 453–454 (Previously the old 4th US Infantry had served as the 4th Sub-Legion in Anthony Wayne's Legion of the United States which had fought at the Battle of Fallen Timbers in 1794).

On 9 August, marching south to rendezvous with a supply train from Ohio, the 4th charged and broke a British-Indian force at the Battle of Maguaga.

The 4th marched into captivity at Quebec City where the troops spent a month aboard prison ships in the St. Lawrence River before being exchanged on 29 October.

[3]: 454–455 The 4th spent the years 1813–14 on the Lake Champlain front, participating in the battles of the Chateauguay (25 October 1813) and Lacolle Mills (30 March 1814) and the siege of Plattsburgh (September 1814).

The 21st fought at York (26 April – 2 May 1813), Sackets Harbor (29 May 1813), as part of Ripley's Brigade at Chippawa, Lundy's Lane and Fort Erie (14 August 1814).

At Lundy's Lane, Jacob Brown, the overall U.S. commander, asked Miller if he could take the British artillery on the high ground dominating the battlefield.

Even here, the 5th saw limited action, engaging in combat only in the final act of the war, the Battle of Bad Axe on 1–2 August near the modern town of Victory, Wisconsin.

Incoming President James Knox Polk directed Brigadier General Zachary Taylor to form an "Army of Observation" at Corpus Christi, Texas, ostensibly to protect the disputed zone from Mexican invasion.

Five companies of the 5th Infantry under the command of Lieutenant Colonel James S. McIntosh reported to Taylor at Corpus Christi on 11 October 1845, two days before Texas voters accepted the annexation offer.

The 5th marched with Taylor from Fort Texas to Point Isabel in late April to clear their supply route of Mexican troops.

Taylor's army marched back from Point Isabel and met the enemy on 8 May, at Palo Alto, several miles east of the fort.

Over night, the Mexicans withdrew to a better defensive position at Resaca de la Palma, which Taylor's army assaulted on the morning of the 9th.

Taylor's troops relieved Fort Texas, crossed the Rio Grande into undisputed Mexican territory and occupied Matamoros, where they spent most of the summer.

The whole regiment was now together, though two companies were detached during the march to Mexico City and spent their time defending supply trains from guerilla attacks.

The 5th provided storming parties for the assaults on the Molino del Rey on 8 September and Chapultepec Castle on the 13th; the full regiment followed up in the latter seizure.

The regiment stayed at Camp Floyd (later Fort Crittenden) in the Great Salt Lake valley until the autumn of 1860, when it moved to New Mexico for operations against the Navajos.

The regiment was ordered to concentrate at Albuquerque in the spring of 1861 for a move east, but the department commander persuaded Washington to leave the 5th on the frontier.

On 1 June 1863 John F. Reynolds officially became colonel of the 5th; however, he was on detached service as a Major General of Volunteers, commanding a corps of the Army of the Potomac.

Reinforcements were rushed in, including the 5th Infantry, which built Fort Keogh at the mouth of the Tongue River in Montana, and began operating from there.

In July 1877 the Nez Perce Indians under Chief Joseph began to march east from Idaho across Montana, pursued by Major General Oliver O. Howard's troops from the Department of the Columbia.

46 members of the regiment received the Medal of Honor for service during this period: The 5th Infantry did not arrive in time to participate in the Spanish–American War though it performed occupation duties.

It constituted the core of the 5th Infantry Regimental Combat Team (RCT) with the mission to provide security while all U.S. troops were withdrawn from the country.

It deployed to Korea on 25 July 1950 to reinforce Eighth Army in the shrinking area of United Nations control known as the Pusan Perimeter.

For the initial four days, brigade combat elements moved forward against devastating automatic weapons and continual harassing sniper fire, well established mine fields and vast underground systems of tunnels, trenches, spider holes and fortifications unrivaled in Vietnam.

During the period 30 January to 5 April, the Brigade conducted eleven major operations against the Viet Cong with battalion or larger sized forces engaged in fierce battle against a hostile enemy.

On 5 April 1966, after 66 days of continuous combat, the Brigade had seized, cleared and secured the base of operations and surrounding area in the vicinity of Cu Chi, Republic of Vietnam.

During those momentous 66 days, the Brigade displayed utmost courage and indomitable spirit, and as a unit it demonstrated extraordinary heroism as it unwaveringly and unceasingly pitted itself against hard core, experienced, and entrenched and determined enemy forces.

The indomitable spirit and extraordinary heroism with which the 2nd Brigade Task Force engaged, battled and defeated a fortified and determined enemy during this period of continuous combat operations is in keeping with the finest tradition of the United States Army and reflects great credit upon all members of the Task Force who participated in the Battle for Cu Chi.

The lead elements of Company C, 1st Battalion came under heavy mortar, rocket-propelled grenade, machine gun, and automatic weapons fire.