Iran  and six world powers will try to make headway toward resolving their nuclear dispute in talks starting in Vienna on Tuesday, with Western officials hoping the uphill challenge will not be made even more difficult by the  Ukraine  crisis. So far, diplomats...

The co-pilot of a missing Malaysian jetliner spoke the last words heard from the cockpit, the airline's chief executive said on Monday, as investigators consider suicide by the captain or first officer as one possible explanation for the disappearance. No trace of Malaysia ...

  President Barack Obama on Monday urged Palestinian President Mahmoud Abbas to make tough decisions and take risks for peace with Israel, saying he hoped to see progress in U.S.-brokered negotiations in coming weeks. In White House talks overshadowed by the Ukraine...

Russian President Vladimir Putin signed a decree on Monday recognizing Ukraine's Crimea region as a “sovereign and independent country,” just hours after the strategic Black Sea peninsula declared it had broken away from Ukraine. The moves triggered the toughest Western sanctions...