The brigade combat team (BCT) is the basic deployable unit of maneuver in the U.S. Army. A brigade combat team consists of one combat arms branch maneuver brigade and its assigned support and fire units. A brigade is normally commanded by a colonel (O-6) although in some cases a brigadier general (O-7) may assume command. A brigade combat team contains combat support and combat service support units necessary to sustain its operations. BCTs contain organic artillery training and support, received from the parent division artillery (DIVARTY). There are three types of brigade combat teams: infantry, Stryker, and armored.