If you think their actions suck it's the politicians you should bitch at, not the ones that, risking their lives, obey their orders.
People who sign up now can't pretend they didn't know how shitty politicians are.
They sign up now knowing the recent history of the Iraq war and Afghanistan war etc...
Currently U.S. troops occupy about a third of Syria. Is it even remotely legal?
Can U.S. troops on the ground in Syria really say 'it's just politicians, we had no idea we might end up in Syria!'
Come on, you guys knew the recent history, yet you still decided to sign up, willingly.