Admiralty IslandsThe Admiralty Islands are a group of 18 islands in the Bismarck Archipelago. These are also called the Manus Islands, named after the largest island. The islands form Manus Province of Papua New Guinea. The total area is 2100 km², with a population of 32,713. The capital of the province is Lorengau.
During World War II the islands were first occupied by the Japanese who established a small base in April 1942 near the village of Rossum on Manus Island. On February 29, 1944 during World War II, the Admiralty Islands were invaded in Operation Brewer led by American General Douglas MacArthur. The Americans quickly built a big base at Seedler Harbour, including harbour, wharfes and an airbase, which became an important base for the further war operations in New Guinea as well as on the Philippines.