ISIS Is Still Active in Iraq, Syria and Beyond. This Is What the Threat Looks Like Now

It had always seemed an unlikely boast. But the ISIS-claimed terror attack that killed four U.S. troops in the northern Syrian town of Manbij this week proved the hollowness of U.S. President Donald Trump's repeated claims of victory over the militant network in Syria and Iraq.

"We have won," said Trump on Twitter Dec. 19, days after a phone call with Turkey's President Recep Tayyip Erdogan in which he unexpectedly agreed to withdraw U.S. troops from Syria.

It had always seemed an unlikely boast. But the ISIS-claimed terror attack that killed four U.S. troops in the northern Syrian town of Manbij this week proved the hollowness of U.S. President Donald Trump's repeated claims of victory over the militant network in Syria and Iraq. "We have won," said Trump on Twitter Dec. 19, days after a phone call with Turkey's President Recep Tayyip Erdogan in which he unexpectedly agreed to withdraw U.S. troops from Syria.