Send in U.S. "reconnaissance" jets and leave chem trails of paralyzing agents. Then when both sides have all passed out and went to bed, send in a convoy of mattress trucks and return the sleepy soldiers back to their homes and before leaving making sure to tuck them in and say good night and giving them each a cookie and glass of milk. So when they wake up, they'll be glad to return home. And they also have a cookie. Everyone wins. Unless someone took a bite out of someone's cookie. Then that'd be unfortunate for either sides.