Ultimately their paramount allegiance is to the Constitution and the people of the United States. This can supercede the chain of command when Commander-in-chief places orders contravened by the People.
Congress performs oversight of the military and sets budgets, so they're briefed on operations like this which have some outsized political impact. It doesn't seem to me like these things should be a big deal but the rest of the people in the US seem to act like it is, so Congress is naturally very interested.
Congress performs oversight of the military and sets budgets, so they're briefed on operations like this which have some outsized political impact. It doesn't seem to me like these things should be a big deal but the rest of the people in the US seem to act like it is, so Congress is naturally very interested.