2nd Battalion 11th Marines (2/11) is an artillery

Artillery

Originally applied to any group of infantry primarily armed with projectile weapons, artillery has over time become limited in meaning to refer only to those engines of war that operate by projection of munitions far beyond the range of effect of personal weapons...

 battalion comprising four firing batteries (Echo, Fox, Golf, Kilo 3/12) and a Headquarters Battery. The battalion is stationed at Marine Corps Base Camp Pendleton

Marine Corps Base Camp Pendleton

Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and serves as its prime amphibious training base...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 and its primary weapon system is the M777 lightweight howitzer. The battalion was the second in the Marine Corps to fully transition from the M198 Howitzer

M198 howitzer

The M198 howitzer is a medium-sized, towed artillery piece, developed for service with the United States Army and Marine Corps. It was commissioned to be a lightweight replacement for the WWII era M114 155mm howitzer. It was designed and prototyped at the Rock Island Arsenal in 1969 with firing...

. They fall under the command of the 11th Marine Regiment and the 1st Marine Division.
Provide direct support of the 11th Marine Regiment in time of conflict.