Today the pentagon spokesperson Dana W. White said President Donald Trump  made the decision on Monday and described the Kurdish People’s Protection Units, or YPG, as “the only force on the ground that can successfully seize Raqqa in the near future. We are keenly aware of the security concerns of our coalition partner Turkey,” White said in a statement. “We want to reassure the people and government of Turkey that the U.S. is committed to preventing additional security risks and protecting our NATO ally.”