The Landing at Aitape (Operation Persecution) was a battle of the Western New Guinea campaign of World War II. American and Allied forces undertook an amphibious landing on 22 April 1944 at Aitape on northern coast of Papua New Guinea. The amphibious landing was undertaken simultaneously with the amphibious landings of Battle of Hollandia at Hollandia to isolate the Japanese 18th Army at Wewak.