After the loss of Buna and Gona in New Guinea, the Japanese fell back on their stronghold at Lae. Their attempt to reinforce Lae by sea in March 1943 met with disaster when American and Australian planes sank most of the convoy in the Battle of the Bismarck Sea. Salamaua and Lae then became the objectives for an Allied advance along the northern coast of New Guinea. Fifth Air Force bombers attacked airfields at Wewak, 300 miles west of Lae, to neutralize them. The Allies dropped paratroops at Nadzab, just beyond Lae. Enemy resistance at Salamaua broke on 14 September 1943; Lae fell two days later. In the months that followed, MacArthur’s forces pushed westward, capturing some Japanese strongholds and bypassing others. After taking Hollandia in April 1944, the Allies attacked islands off the northern coast of New Guinea, taking Wakde and Biak in May, Owi in June, and Noemfoor in July. Sansapor on New Guinea also was gained in July. Aerial attacks on the Philippines began in August, and Morotai was seized in October to provide air bases for the invasion of the Philippines. Allied planes also bombed the oil center at Balikpapan and other targets in Borneo and Celebes.

Divisions that Fought in the New Guinea Campaign

6th Infantry division 24th Infantry division 31st Infantry division 32nd Infantry division 33rd Infantry division 38th Infantry division 41st Infantry division 43rd Infantry division 93rd Infantry division 11th Airborne division 1st Cavalry division

View the U.S. Army Divisions in World War II Print