The Vietnam War
Although many soldiers and officers from the Maine Army National Guard served as volunteers in Vietnam or South East Asia, none of Maine's units were called into service.
Major changes came to Maine's force structure between 1959-1961. The 103rd Infantry Regiment converted from infantry to armored cavalry, and then to armor. The field artillery transitioned from towed howitzers to self-propelled guns. The anti-aircraft battalion transitioned to the 262nd Engineer Battalion.
In 1964, the strength of the Maine Army National Guard was 2,641 personnel in the following units.
142nd Ordnance Company
Battery F, 152nd Field Artillery (Aviation)
181st Signal Detachment
121st Public Information Detachment
HHC, 133d Armor Group
1st Battalion, 20th Armor (HHC, A, B, and C companies)
2nd Battalion, 20th Armor (HHC, A, B, and C companies) (Mobilized in 1962 for one year, serving at Fort Stewart and Fort Knox)
3d Battalion, 20th Armor (HHC, A, B, and C companies)
4th Battalion, 20th Armor (HHC, A, B, and C companies)
HHC, 240th Engineer Group
262d Engineer Battalion (HHC, A, B, and C companies)
152d Field Artillery Battalion (HHB, Service Battery, A, B, and C batteries)
Department of Defense
Veterans and Emergency Management Military Bureau
Historian Headquarters, Maine Army National Guard
Camp Chamberlain, 23 Blue Star Ave,
Augusta ME 04330