President Vladimir Putin has scrambled thousands of troops and hundreds of warplanes across southwestern Russia for large-scale military drills intended to test the troops' readiness amid continuing tensions with the West.
CBS News: Putin rattles Russia’s saber with massive military drills
Russian soldiers stand near a tank outside a former Ukrainian military base in Perevalnoye, near the Crimean capital Simferopol, on March 27, 2014.
