Did Japanese-Americans also get to serve in units with white soldiers, out of curiosity?
@LauraTXNM Yes,and no. That one is a little complicated. Mostly because no Japanese infantryman or medic would be safe in any Army or USMC unit sent to fight the Japanese in the East. The whole "They all look alike to me,and they are sneaky little bastids that even play dead so they can shoot you in the back when you walk past them" thing. Which is why the 442nd Regimental Combat Team was formed. They were going to fight in Europe from Day One of the planning after someone figured out "We have all these Japanese-Americans enlisting,so what can we do with them?"
Where it gets complicated is that the US Military needed Japanese interpreters who fully understood the culture and language,and who could even read it. Who better than the children of Japanese immigrants who grew up reading,writing,and speaking both Japanese and English? A unknown to me number of Japanese-American enlistees whose personality tests,educational backgrounds,and personal histories and interests "rang the right bells" were asked if they would be willing to be assigned to intelligence units going to fight in the Orient. This is what makes it a little tricky. Military Intelligence is NOT considered to be a combat assignment. In most cases it isn't,but this was mostly not true of the ones that ended up being assigned to US Army and USMC infantry units. No,they were NOT members of any infantry squads or platoons,but to do their jobs many of them had to be ATTACHED to infantry units for a number of reasons. The most obvious being the sooner the brass gets notice of a planned Japanese attack,the better they can prepare for it,and there is no "fresher" intelligence than that gathered from a enemy headquarters that has just been overran and still has smoke rising from it. Someone on the scene right then that KNOWS the language and the culture can be invaluable.
They also needed to be close to the front lines so they could shout to the Japanese that were dug into the caves,etc,to surrender and tell them they would be treated well and not tortured. This saved both US and Japanese lives. Plus they could gather intel from reading the diaries and any notes in the pockets or equipment of any dead Japanese in a position that was just overran.
Technically speaking they were NOT combat troops because they were never in the front line during an assault,and they were not a part of any infantry company. The accompanied the infantry thought,and followed along right behind them,so they were still in considerable danger.