As President Barack Obama weighs options for potential US intervention in Iraq, the Pentagon has a broad range of ground, air and sea troops and assets in the region.
They include: Six warships in the Persian Gulf, including the aircraft carrier USS George HW Bush, a cruiser, three destroyers and the amphibious transport ship the USS Mesa Verde, which is carrying about 550 Marines and five V-22 Osprey hybrid aircraft.
About 5,000 US soldiers across the border in Kuwait, as part of a routine rotational presence. They include the 2nd Brigade, 4th Infantry Division, a combat aviation brigade and other support troops.
Air Force aircraft capable of a full range of missions positioned within range of Iraq. According to Air Force Secretary Deborah Lee James they include F-15E, F-16 and F-22 fighters; B-1 bombers, C-130 cargo planes and A-10 attack jets.
Intelligence gathering and surveillance assets, including drones, in the region. [AP]