The Guardian: Vladimir Putin may believe time is ripe for another invasion

The situation in Crimea looks ominous. Russia's FSB spy agency said on August 10 that it had foiled a series of attacks by armed Ukrainians on the peninsula. Minutes later, Vladimir Putin accused Kyiv’s pro-western government of choosing terror over peace. Meanwhile, largely unnoticed by the outside world, Russia has been stealthily shipping military vehicles to Crimea, which Putin annexed in the spring of 2014.