What agreements, reached between 1864 and 1949, provide rules for the conduct of war?

Answer – Geneva Conventions

The Geneva Conventions form the fundamentals of international humanitarian law. It extensively laid out the basic rights of wartime prisoners (both civilians and military personnel); established protections for the wounded and sick; and also for the civilians that are in and around a war-zone.

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

i'd assume india mainly because of how isolated japan was.   plus it is a whole china away.