TF 56 was the largest force within TF 50 and was built around the 10th Army. The army had two corps under its command. In all, the Army had over 102,000 Army (of these 38,000+ were artillery, combat support and HQ troops, with another 9,000 service troops), over 88,000 Marines and 18,000 Navy personnel (mostly Seabees and medical personnel).