So we have this mixed starfleet crew, consisting of about 3 quarters 'original starfleet' crew, and 1 quarter 'former maquis' members. And it seems that the decision that they form one starfleet crew is pretty much accepted by everyone, even though the decision seems to be made unilaterally by Janeway. Of course it helps that she commands the only ship left, but still 
I was wondering what would happen in real life ? I know we cannot duplicate this scenario but just suppose there's a U.S. army or navy unit, cut off from the rest of the US for whatever reasons without any chance to re-establish contact within a few years. There's also a group of civilians 25% their size (albeit with some experience in naval matters), and they are forced to work together in order to survive -- let's say on a navy ship. Then, what would realistically happen (I know this isn't a realistic scenario but anyway)? Would the navy 'absorb' the civilians as seen on VOY ?

I was wondering what would happen in real life ? I know we cannot duplicate this scenario but just suppose there's a U.S. army or navy unit, cut off from the rest of the US for whatever reasons without any chance to re-establish contact within a few years. There's also a group of civilians 25% their size (albeit with some experience in naval matters), and they are forced to work together in order to survive -- let's say on a navy ship. Then, what would realistically happen (I know this isn't a realistic scenario but anyway)? Would the navy 'absorb' the civilians as seen on VOY ?