<span style="color: #222222;">US troop levels in northern Syria will probably stabilize around 500, a top American military leader said, weeks after President Donald Trump had announced a complete withdrawal.<br />''<br />''General Mark Milley, chairman of the Joint Chiefs of Staff, told ABC television that the US troops will be less than 1,000.<br />''<br />''Trump's abrupt announcement last month drew angry rebukes. He later relented in part, saying he would leave some troops in the region.<br />''<br />''Milley said it was important for US troops to remain in Syria so long as IS has a presence there.</span><br />