He mentioned Marines because Marines are who he uses as his Secret Service. And he mentioned Guard. Guard are state militia that are under control of each state and not the Government. If a state wanted to they could tell the Feds to piss off. They wouldn't get that government cheese if they did though. Those two branches are kind of like independent contractors. They work by different rules. The others are under POTUS, which atm is Biden. Yes they can mutiny but that just throws us into a physical war. There are a lot of higher ranking officers that detest Trump. Knowing that the likelihood of a coup is close to 0. So 11.3 has to happen for the military to be self controlled for a short time or they fall under the new Commander in Chief. Few different ways that could go so I won't even hazard to guess. I can point you done the road but not to a time because everything is still to in flex. Maybe you can find it but people are people even if their not.