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What can Obama do about Russia's invasion of Crimea?
CNN Washington (CNN) — The Kremlin sends troops across the border, and the United States and its allies cry foul. It's happened before — Afghanistan in 1979, Georgia in 2008 — and now Russian President Vladimir Putin has essentially seized military control of … Markets Fall as Impasse in Ukraine Intensifies REFILE-GLOBAL MARKETS-Asian shares under pressure as Ukraine tensions … Asian Shares Inch Higher; Eyes on Ukraine — Update |