Each branch of the United States Armed Forces has their own uniforms and regulations regarding them.
Army – ACU
currently, three patterns are in use - UCP, MultiCam, also known as OEFCP, and OCP, a pattern similar to but distinct from Multicam
Marine Corps – MCCUU
(woodland and desert variants)
Navy – NWU
Currently, three patterns are in use: NWU Type I, which is primarily blue, AOR-1, which is primarily tan, and AOR-2 (shown above), which is primarily green.
Air Force – ABU
Coast Guard – ODU
Coast Guard – CGCUU (used in oversea deployment or combat operations)
Other – MultiCam, used by U.S. Army and ground U.S. Air Force units deployed in Afghanistan, and Special Operations Forces.
Army – ASU
Marine Corps – MCSU
Navy -–NSU
Air Force – ASDU
Coast Guard – CGSDU