SIMFEROPOL, Ukraine (AP) — Russian troops took over the strategic Crimean peninsula Saturday without firing a shot. The newly installed government in Kiev was powerless to react, and despite calls by U.S. President Barack Obama for Russia to pull back its forces, Western governments had few options to counter Russia’s military moves.

Russian President Vladimir Putin sought and quickly got his parliament’s approval to use its military to protect Russia’s interests across Ukraine. But while sometimes-violent pro-Russian protests broke out Saturday in a number of Russian-speaking regions of eastern Ukraine, Moscow’s immediate focus appeared to be Crimea.