Hardcore ruthless starts in the Pacific

(Infinite flow, not invincible flow)
A terminally ill boy joins Infinity War in order to cure his terminal illness.
Have experienced Pacific battles: Battle of Guadalcanal, Saipan, Peleliu.
Ongoing - Battle on the Western Front: Operation Overlord - Airborne
The following are the regions that will be experienced in the future, selected from the major battlefields.
Pacific battlefield, western battlefield, eastern battlefield and so on.
Hardcore and ruthless people are never achieved overnight, they must be tempered by blood and fire!