The Salamaua–Lae campaign was a series of actions in the New Guinea campaign of World War II. Australian and United States forces sought to capture two major Japanese bases, one in the town of Lae, and another one at Salamaua. The campaign to take the Salamaua and Lae area began with the Australian attack on Japanese positions near Mubo, on 22 April 1943. The campaign ended with the fall of Lae on 16 September 1943.