133rd Engineer Battalion

133rd Engineer Battalion
133rd Engineer Battalion
	Distinctive unit insignia of the 133rd Engineer Battalion
Active	1803–present
Country	United States
Branch	National Guard
Type	Battalion
Role	Engineer Battalion
Part of	Maine Army National Guard
Nicknames	Maine's Regiment; Twentieth Maine
Motto	To the Last Man
Engagements	War of 1812; American Civil War Battle of the Wilderness; Battle of Chancellorsville; Battle of Fredericksburg; Seven Days Battles; Red River campaign; ; World War I Battle of Lorraine; Second Battle of the Marne; Battle of Saint-Mihiel; Third Battle of the Aisne; Meuse–Argonne offensive; ; World War II Pacific Theater; ; Korean War; Operation Iraqi Freedom; Operation Enduring Freedom;
Decorations	Meritorious Unit Commendation
Commanders
Commander	LTC Donald Lachapelle
Command Sergeant Major	CSM Heath Bouffard
Notable; commanders	Adelbert Ames; Joshua L. Chamberlain;

The 133rd Engineer Battalion is a military engineering unit of the Maine Army National Guard.

The battalion is one of the oldest units in the organization, with lineage tracing back to nineteenth-century militia formations in the state.

The unit consists of horizontal and vertical construction companies, a combat engineer company, a forward support company, a survey and design detachment, and a headquarters company.