What should I do???

So here is a bit of background info, remember how I went under investigation of 'act of treason' so they reopened my case (I don't know why) and I got call like not too long ago saying I could be charged with time, but the thing is I'm not a US citizen so why are they still trying lock me up?? Like the most they can do is fine me right? But here is the catch I have 2 options they gave me since I am lucky I'm not a US citizen, either I step down from my position in the marines as the captain or I leave america and not return for next following months (after this 1 month break I have I'm supposed to go back for 2 more months) and carry on my job in the UK (tho I don't mind but it means I have to leave the 1st divison and my unit alone which I cannot do and it will get me into trouble in the UK, I 'neglected' my duties and team) life is unfair