A buddy of mine joined the army late. I think he was around 30 years old. He wasn't a diehard liberal, but he hated Trump and considered himself a Democrat. He went off to boot camp, and when he came back, he had pulled a complete 180. I remember him telling me that you basically have to support Trump, otherwise you'd never make it out of there. Said he saw someone get harassed and assaulted by other soldiers for talking bad about Trump.
Now, I have absolutely NO idea how much of what he told me was true. It seemed totally unreal/unbelievable to me. But I also know how much he hated Trump before going in, and how much he changed when he got back. It was mind blowing. Especially for a 30 year old man, not some 18 year old with no life experience.