 Air support was provided by the 4th Air Army, consisting primarily of the 7th Air Division and 14th Air Brigade, along with some elements from the 6th Air Division.Based in Wewak, the Japanese aircraft were mainly used to escort Japanese shipping and attack Allied shipping around the main beachhead during the campaign, with a secondary task of undertaking ground attack missions in support of Japanese troops.The 11th Naval Air Fleet, based at Rabaul, also undertook anti-shipping missions.