This study examines the operational history of the First Cavalry Divisions conquest of the Admiralty Islands during World War Two as the final phase of Operation Cartwheel. Cartwheel called a two pronged attack; one prong in New Guinea, by-passing large Japanese garrisons and the other in the northern Solomon Islands with the goal the isolation of the strong point at Rabaul. The material is drawn primarily from U.S. Army records held by the National Archives at College Park, Maryland, records from the Air Force Historical Research Agency at Maxwell Air Force Base, Alabama and other reports. The study concludes that the conquest of the Admiralty Islands allowed the by-pass of Rabaul and Wewak, New Guinea. The Admiralty Islands served as a base for future operations carried out against the Japanese.