Russia's military build-up in Syria includes a "considerable and growing" naval presence, long-range rockets and a battalion of ground troops backed by Moscow's most modern tanks, the U.S. ambassador to NATO said on Wednesday. Speaking on the eve of a NATO defence ministers meeting to be...

NATO on Tuesday rejected Moscow's explanation that its warplanes violated the air space of alliance member Turkey at the weekend by mistake and said Russia was sending more ground troops to Syria and building up its naval presence. With Russia extending its air strikes to include the...

Yemeni security officials say at least 55 fighters have been killed and more than 100 injured in battles in Marib province, a key front in the fighting against Shiite Houthi rebels. The officials, who remain neutral in the conflict that has splintered the country, say most of the casualties...

Bashar al-Assad said the success of a military campaign by Russia, Syria and its allies was vital to save the Middle East from destruction, a day after Moscow said it would step up air strikes against Islamic State targets across Syria. A year-long air campaign by Western and...