"The CIA was approached by a representative from the Joint Chiefs with a suggestion: there were far less costly weapons available in Turkish arsenals that could reach the Syrian rebels within days, and without a boat ride.’ But it wasn’t only the CIA that benefited. ‘We worked with Turks we trusted who were not loyal to Erdoğan,’ the adviser said, ‘and got them to ship the jihadists in Syria all the obsolete weapons in the arsenal, including M1 carbines that hadn’t been seen since the Korean War ..."
from the article