“The U.S. military has sent a team of troops to a small city in Syria to prevent the various forces present there from fighting one another. The Pentagon calls its effort in Manbij ‘reassure and deter.’ It’s focused on keeping peace between Syrian Kurdish militias and Turkish military units, both of whom are fighting the Islamic State group but remain deeply distrustful of one another. “

Source: Pentagon: U.S. troops play new role in Syria