complete the exercise early this week. The massive war games have stoked fears that the Kremlin might use the troops to seize territory in pro-Russian areas of eastern Ukraine.
In Brussels, meanwhile, the ambassadors of NATO's 28 member nations will hold a second emergency meeting on Ukraine on Tuesday after Poland, which borders both Russia and Ukraine, invoked an article calling for consultations when a nation sees its ''territorial integrity, political independence or security threatened,'' the alliance said in a statement.
President Barack Obama has said that Russia is ''on the wrong side of history'' in Ukraine and its actions violate international law. Obama said the U.S. was considering economic and diplomatic options that will isolate Russia, and called on Congress to work on an aid package for Ukraine.
In return, Russia's agricultural oversight agency issued a statement Tuesday declaring the reversal of its earlier decision to lift the ban on imports of U.S. pork. It said the existing U.S. system of checks don't guarantee its safety.
And Putin's economic advisor, Sergei Glazyev, said that Russia can develop financial ties with other nations to offset any potential Western sanctions.