A brigade is a major tactical military formation that typically comprises three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division.
A U.S. infantry brigade of around 3,200 personnel, formed into eight battalion-sized groups
Military organization (AE) or military organisation (BE) is the structuring of the armed forces of a state so as to offer such military capability as a national defense policy may require. Formal military organization tends to use hierarchical forms.
A mixed aircraft and ship formation of military vehicles during an exercise with USN and JASDF vehicles.