Putin says huge mistake not to work with Assad's forces

WASHINGTON (Reuters) - Russian President Vladimir Putin said on Monday it was a huge mistake not to cooperate with Syrian President Bashar al-Assad's military, which he said was the only force truly fighting Islamic State militants in Syria.

"We think it is an enormous mistake to refuse to cooperate with the Syrian government and its armed forces who are valiantly fighting terrorism face to face," Putin told the U.N. General Assembly.