Mattis warns 'ISIS will resurge' without U.S. pressure on Syria

Mattis warns 'ISIS will resurge' without U.S. pressure on Syria
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Former Defense Secretary James MattisJames Norman MattisThreatening foreign states with sanctions can backfire Overnight Defense: Erdoğan gets earful from GOP senators | Amazon to challenge Pentagon cloud contract decision in court | Lawmakers under pressure to pass benefits fix for military families Amazon to challenge Pentagon's 'war cloud' decision in federal court MORE said in a new interview that ISIS will become stronger in northern Syria and Iraq if U.S.-aligned forces do not maintain pressure in the region.

In an interview airing Sunday on "Meet the Press," Mattis warned that the region was in "disarray" due to the invasion of Turkish forces and withdrawal of U.S. troops, which he warned would benefit ISIS forces thought to be hiding in the region as well as those already detained in prison camps.

"It’s in a situation of disarray right now," Mattis said of the northern Syria region currently besieged by Turkish forces. "Obviously, the Kurds are adapting to the Turkish attacks. And we'll have to see if they're able to maintain the fight against ISIS. It's going to have an impact. The question is, how much?"

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"I think Secretary of State [Mike] Pompeo, the intelligence services, the foreign countries that are working with us have it about right that ISIS is not defeated," Mattis continued. "We have got to keep the pressure on ISIS so they don't recover. We may want a war over. We may even declare it over."

Mattis also likened President TrumpDonald John TrumpRepublicans consider skipping witnesses in Trump impeachment trial Bombshell Afghanistan report bolsters calls for end to 'forever wars' Lawmakers dismiss Chinese retaliatory threat to US tech MORE's announcement early this week that the U.S. would allow Turkish military action in the region to former President Obama's drawdown of troops in Iraq.

"You can pull your troops out, as President Obama learned the hard way, out of Iraq, but the 'enemy gets the vote,' we say in the military," Mattis said. "And in this case, if we don't keep the pressure on, then ISIS will resurge. It's absolutely a given that they will come back."

Mattis joined a number of lawmakers on Capitol Hill this week who warned that ISIS forces in the region would capitalize on chaos caused by the withdrawal of U.S. troops and the invasion of Turkish forces. Thousands of Kurdish civilians have fled the region due to Turkish military strikes.

Trump has faced mounting Republican criticism over the issue even as his administration battles Democrats on an impeachment inquiry and a wide range of investigations.

On Monday, Senate Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellRepublicans consider skipping witnesses in Trump impeachment trial On The Money: Pelosi, Trump tout deal on new NAFTA | McConnell says no trade vote until impeachment trial wraps up | Lawmakers push spending deadline to Thursday McConnell: Senate impeachment trial will begin in January MORE (R-Ky.) urged the president to reconsider in a rare public rebuke.

"I urge the President to exercise American leadership to keep together our multinational coalition to defeat ISIS and prevent significant conflict between our NATO ally Turkey and our local Syrian counterterrorism partners," he said.