 South West Pacific Area ( SWPA ) was the name given to the Allied supreme military command in the South West Pacific Theatre of World War II . It was one of four major Allied commands in the Pacific War . SWPA included the Philippines , Borneo , the Dutch East Indies ( excluding Sumatra ) , East Timor , Australia , the Territories of Papua and New Guinea , and the western part of the Solomon Islands . It primarily consisted of United States and Australian forces , although Dutch , Filipino , British and other Allied forces also served in the SWPA . 
