Rebel groups urged U.S. President Barack Obama to do more to stop Russian bombing raids in Syria as pressure mounted on Washington ahead of a new round of peace talks this week. World powers are meeting in Germany on Thursday to try to revive the first effort in two years to...

Syria's mainstream rebels risk total collapse after a Russian-backed government advance that severed their main supply line to Aleppo city and threatens to leave them completely besieged there. Analysts said rebels and their international backers were left with few options to prevent fresh...

The United States and its allies are probably many weeks or even months away from launching a new military campaign against Islamic State in Libya, despite mounting concern about the group's spread there and its attacks on oil infrastructure, U.S. officials say. The Pentagon...

Russia said on Thursday it had serious grounds to suspect Turkey was preparing a military incursion in Syria as a Syrian army source said the city of Aleppo would soon be encircled by government forces that are advancing with Russian air support. Turkey, which has backed the...