The 453rd Engineer Depot Company has Campaign Participation Credits for (3) Bismarck Archipelago ( Detachment only); 13 Leyte; 14 Luzon; 15 New Guinea.
As common with tis type of unit, the whole company was usualy not in one place at the same time. Most of the time they under command of General Kreuger`s 6 th Army.
3rd Platoon was part of 6th Army`s Michaelmas Task Force for the landing at Saidor, New Guinea, 2 Jan `44. Task force was led by the 126th Inf Reg of the 32nd Inf Div.
2nd Platoon has an assault landing credit for Mindoro Island, 15 Dec `44, part of Western Visayan Task Force led by the 19th Inf Reg of the 24th Inf Div & the 503rd Parachute Regiment Combat Team.
I dont see a credit for occupation of Japan, but that doesnt mean they were not there. The 1st Cavalry Division was the principle unit that occupied Yokohama.
Larry