In Eastern Europe, Shades of the Cold War

At the end of the Cold War, NATO and Russia agreed not to station forces along their shared borders. But times have changed. Vladimir Putin's actions in Crimea and Ukraine have the Pentagon calling Russia the primary threat to American interests. Now, US funding for NATO will be quadrupled to provide what's called "a rotational force" to patrol Eastern Europe, including the Baltic States and Poland. NATO calls it "deterrence." Russia calls it "aggression."