2nd Battalion, 1st Marines

2nd Battalion, 1st Marines
2nd Battalion, 1st Marines insignia
Active	August 1, 1922 – July 20, 1924 March 1, 1941 – October 31, 1947 August 4, 1950 – January 24, 1989 September 9, 1994–present
Country	United States of America
Branch	United States Marine Corps
Type	Light infantry
Role	Locate, close with and destroy the enemy by fire and maneuver
Size	1,200
Part of	1st Marine Regiment 1st Marine Division
Garrison/HQ	Marine Corps Base Camp Pendleton
Nickname(s)	Gunsmoke, The Professionals, Ghost Battalion
Motto(s)	The Professionals
Engagements	World War II Guadalcanal Campaign Battle of Cape Gloucester Battle of Peleliu Battle of Okinawa Korean War Battle of Inchon Second Battle of Seoul Battle of Chosin Reservoir Battle of Hwacheon Battle of the Punchbowl Battle of Bunker Hill (1952) First Battle of the Hook Battle for Outpost Vegas Battle of the Samichon River Vietnam War War on Terror Operation Enduring Freedom Operation Iraqi Freedom Operation Vigilant Resolve
Commanders
Current commander	LtCol T.C. Onischuk
Notable commanders	James M. Masters, Sr. Edwin A. Pollock William W. Stickney Charles F. Widdecke Archie Van Winkle William G. Leftwich, Jr. Peter Pace

2nd Battalion, 1st Marines (2/1) is an infantry battalion in the United States Marine Corps based in Camp HORNO on Marine Corps Base Camp Pendleton, California. Nicknamed "The Professionals," the battalion consists of approximately 1,200 Marines and Sailors. Normally they fall under the command of the 1st Marine Regiment and the 1st Marine Division.