The head of Russia's upper house of parliament said on Saturday she could not rule out the dispatch of a limited troop contingent to Ukraine's Crimea region to protect the Black Sea fleet's base there and Russian citizens.Valentina Matviyenko gave no indication that a decision had been taken on this but said sending troops might be possible following a request for assistance from the pro-Russia authorities in Crimea."It is possible, in this situation ... even to send a limited contingent to guarantee the security of the Black Sea fleet and Russian citizens living on the territory of Crimea," Matviyenko said.
