Tillerson said Trump was determined not to repeat Obama's "mistake" when he withdrew U.S. troops from Iraq in 2011.
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U.S. Ambassador Nikki Haley said talks between the government and Taliban, and a peace process, are closer than ever.
Afghans recognized President Trump with a gold medal for bravery after his administration suspended aid to Pakistan.
Rex Tillerson warned that if North Korea does not negotiate on its nuclear weapons it could trigger a military response.
According to sources, McMaster met with officials from South Korea and Japan.
The U.S. faces new challenges in Iraq and Syria despite the crumbling of ISIS.
The U.S. Air Force is deploying six B-52H Stratofortress bombers and 300 airmen from Barksdale AFB.
Japan's public broadcaster mistakenly sent an alert Tuesday warning citizens of a North Korean missile launch.
Secretary of State Rex Tillerson huddles Tuesday with nations that fought on America's side in the Korean War.
An Islamic State group offshoot is claiming it carried out the October attack in Niger that killed four U.S. soldiers.