Russia suspends arms control pact :

Mr Putin signed a decree citing "exceptional circumstances" affecting security as the reason for the move. Russia has been angered by US plans to base parts of a missile defence system in Poland and the Czech Republic.
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The Cold War is back:

The Russian military is once again treating Nato as the glavny protivnik, the primary enemy, and drawing up plans for a nuclear war. And Putin's explicit aim is to challenge, and then counter, America's world dominance.