Heywood returned to Wellington, New Zealand, 1 October 1943 to train and embark fighting men landed in amphibious assault on bloody
Tarawa in the
Gilbert Islands 20 November. She returned to Pearl Harbor 3 December for amphibious warfare training culminating in the amphibious assault for the capture of the
Marshall Islands which commenced 31 January 1944. She put
garrison troops ashore at
Kwajalein and
Majuro, then landed assault units as Americans swiftly swept on to
Eniwetok. With the Marshalls secured, the transport overhauled in San Pedro, California, then returned to the Marshalls 11 May to prepare for the invasion of the
Marianas Islands. She landed assault troops at
Saipan 16 June and on nearby
Tinian 24 July as America took a giant sea step toward
Japan herself. ==Supporting the invasion of the Philippines==