2-53. Security force assistance brigades provide theater army commanders the capability to support theater security cooperation activities and build partner-nation security force capacity. Each security force assistance brigade is organized with a headquarters and headquarters company, two advisory maneuver battalions (either an infantry or combined arms battalion), one advisory cavalry squadron, one advisory field artillery battalion, one advisory engineer battalion (with embedded signal and military intelligence companies), and an advisory brigade support battalion to focus primarily on tactical and operational advising. Security force assistance brigades have the capability to conduct tactical advisory missions.