 Complete the following phrase:  In March, she returned south to the area around Buna to prepare for operations to capture the remainder of the northern coast of New Guinea. During the Hollandia assault, the first of five leap frog steps to the Vogelkop, Welles was assigned to Task Group 77.2 TG 77.2, the Central Attack Group which mounted its assault at Humboldt Bay on 22 April. About a month later, on 18 May, she supported the 