Anchoring off Guadalcanal on 23 February, she received calls from Admiral William F. Halsey and Maj. Gen. Roy S. Geiger, USMC. During March she made two runs from Guadalcanal carrying boats and marines for the daring invasion of Emirau Island, just 150 miles north of the Japanese stronghold at Rabaul. She spent April and May in Hawaiian waters, training with marines, then departed 30 May for Eniwetok en route to the invasion of Saipan. "Lindenwald" arrived the morning of D-Day, 15 June, and debarked LCMs preloaded with tanks and men of the 2d Marine Division. The ship then stood off Saipan while on the beaches the marines overcame tough opposition with naval gunfire and air support. "Lindenwald" departed for San Francisco 22 June and arrived 11 July, touching Pearl Harbor en route to unload boats and marine casualties.