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Ukrainian border guards stand on guard at a base close to the Russian border near Donetsk

Ukrainian border guards stand on guard at a base close to the Russian border near Donetsk April 15, 2014. Ukrainian armed forces on Tuesday launched a "special operation" against militiamen in the country's Russian speaking east, authorities said, recapturing a military airfield from pro-Moscow separatists. REUTERS/Konstantin Chernichkin (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)

Protests in eastern Ukraine

Yahoo News

In the first Ukrainian military action against a pro-Russian uprising in the east, government forces said they clashed Tuesday with about 30 armed gunmen at a small airport.

The clash came hours after Ukraine's acting president, Oleksandr Turchynov, had announced an "anti-terrorist operation" against the armed, pro-Russian insurgents who had seized control of numerous buildings in at least nine cities in Ukraine's restive east. (AP)

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