When you've got an itch, you scratch it. That urge is often caused by an irritation, which is how China and Russia perceive recent U.S. military moves in their neighborhoods. That's what accounts for a flurry of dangerous fly-bys of U.S. warplanes and ships by Beijing's and Moscow's aircraft. But figuring out the root motive - and even who's in the right - is a little more complicated.
The Time: Why do Chinese and Russian fighters keep buzzing US spy planes?

A Russian Sukhoi Su-24 attack aircraft makes a very-low altitude pass by the USS Donald Cook (DDG 75),an Arleigh Burke-class guided-missile destroyer, operating in the Baltic Sea April 12, 2016.