Fighter jets

Kerry: Russian fighter jets in Syria raise serious questions

U.S. officials say Russia moved a small number of fighter jets to a base in Syria on Friday, hours after U.S. Defense Secretary Ash Carter talked with Russia Defense Minister Sergei Shoigu in the first military contacts between the two countries in some time.

"Clearly, the presence of aircraft with air-to-air combat capacity ... raises serious questions," Kerry said, responding to a question after meeting with British Foreign Minister Philip Hammond.

NATO opens military center in Lithuania amid Ukraine crisis

NATO Secretary-General Jens Stoltenberg, who joined Lithuanian President Dalia Grybauskaite for the opening ceremony, described the new unit as a "big step forward toward greater solidarity, greater strength and greater readiness."

The NATO force integration unit in Vilnius is one of six small headquarters — manned by some 40 staff each — that opened this month in Bulgaria, Estonia, Latvia, Poland and Romania, as part of the alliance's biggest reinforcement of collective defense since the end of the Cold War.