Riot police fired water cannon and tear gas at migrants demanding to be let through Hungary's newly shut EU frontier on Wednesday, while refugees at other Balkan borders clambered through cornfields in search of new routes.

• September 16, 2015

Russia's biggest annual military exercises are under way.

• September 15, 2015

Russia has positioned about a half dozen tanks at an airfield at the center of a military buildup in Syria, two U.S. officials said on Monday, adding that the intentions of Moscow's latest deployment of heavy military equipment were unclear.

• September 14, 2015

Iranian Foreign Minister Mohammad Javad Zarif will visit Beijing next week to discuss Iran's nuclear agreement and efforts to boost ties with China, China's foreign ministry said on Friday.

• September 11, 2015

Russian forces have begun participating in military operations in Syria in support of government troops, three Lebanese sources familiar with the political and military situation there said on Wednesday.

• September 10, 2015

Russia has started to build a huge military base housing ammunition depots and barracks for several thousand soldiers near the Ukrainian border, a project that suggests the Kremlin is digging in for a prolonged stand-off with Kiev.

• September 9, 2015

Indications of increased Russian involvement in Syria in support of President Bashar al-Assad are prompting a reassessment in Israel about how to handle fall-out from the conflict without risking a clash with Moscow.

• September 8, 2015

Syria's information minister denied on Tuesday reports of a Russian military buildup in his country, saying there were no Russian combat forces fighting alongside the army against mainly Islamist insurgents.

• September 8, 2015