02ukraine-375-ss-slide-GR4B-jumboAs Russian armed forces effectively seized control of Ukraine’s Crimean peninsula on Saturday, the Russian Parliament granted President Vladimir V. Putin the authority he sought to use military force in response to the deepening instability in Ukraine. The authorization cited a threat to the lives of Russian citizens and soldiers stationed in Crimea and other parts of Ukraine, and provided a blunt answer to President Obama, who on Friday pointedly warned Russia to respect Ukraine’s territorial sovereignty. Even before Mr. Putin’s statement in Moscow, scores of heavily armed soldiers had tightened their grip on the Crimean capital, Simferopol, surrounding government buildings, shuttering the airport, and blocking streets, where they deployed early Friday. More