18th Infantry Regiment (United States)

18th Infantry Regiment
Coat of arms
Active1861–present
Country United States
Branch United States Army
TypeMechanized infantry
Garrison/HQ1–18: Fort Riley, Kansas
Nickname(s)"Vanguards" (special designation)
Motto(s)"'Til the Last Round!"
EngagementsAmerican Civil War

Indian Wars
Spanish–American War
Philippine–American War
World War I
World War II

Vietnam War
Gulf War
Iraq War

War in Afghanistan
Commanders
Notable
commanders
Henry B. Carrington
Thomas H. Ruger
Captain William J. Fetterman
Henry W. Wessells
Ulysses G. McAlexander
John M. J. Sanno
Insignia
Distinctive unit insignia

The 18th Infantry Regiment ("Vanguards") is an infantry regiment of the United States Army. The regiment currently exists with one active battalion, under the U.S. Army Regimental System; regimental designation is used only for historical tradition, and there is no active regimental headquarters. The 18th Infantry once had up to four active battalions, but three have been inactivated: