Trump booting soldiers out of army due to immigration

I'd be interested to know more, given that so many of these media reports conflate illegal immigrants with legal immigrants it's hard to know exactly who is being discussed. Are they just booting out legal immigrants? If so, that's a weird policy, if they are booting out illegal immigrants...well they should given that you have to have legal status to join meaning that if you were illegal you additionally broke the law stealing someone's identity in order to sign up or there was a paperwork error which needs to be fixed.

Looking into it further, turns out they are illegal immigrants that are being booted out, which makes perfect sense.