U.S. President Joe Biden and his NATO counterparts on Tuesday endorsed the biggest shakeup since the Cold War of the way the military alliance would respond to any attack on its territory by Russia.
Inspired in part by Moscow's invasion of Ukraine, the highly-secretive defense plans lay out which of the 31 member countries would be called on to respond an attack anywhere from the Arctic and Baltic Sea regions through the northern Atlantic and south to the Mediterranean and Black Seas.
