"Onward Towards Our Noble Deaths is a semi-autobiographical account of Shigeru Mizuki and his experience in the desperate final weeks in a Japanese infantry unit at the end of World War Two. The soldiers are instructed that they must go into battle and die for the honor of their country, with certain execution facing them if they return alive. Mizuki was a soldier himself (he was severely injured and lost an arm) and uses his experiences to convey the devastating consequences and moral depravity of the war." This is a fantastic insight to the lowly peasant soldier of the Rising Sun and what they are told to do in the name of their Emperor. Give the full series a read here.
Below is a tv adaptation of the comic as well so have a look there too.