In the United States Armed Forces, brigadier general (BG, Brig Gen, or BGen) is a one-star general officer with the pay grade of O-7 in the U.S. Army, U.S. Marine Corps, and U.S. Air Force. Brigadier general ranks above a colonel and below major general. The rank of brigadier general is equivalent to the rank of rear admiral (lower half) in the other uniformed services.