They are in it together with the radical muslims in seeking our destruction. They have supported every one of our enemies for decades, including Saddam Hussein. They are also currently building up Hugo Chavez and the Castro brothers, and working more closely than ever with the ChiComs to build (in their own words) an "new international order". They have conducted 3 sets of joint war games with the ChiComs in the past 5 years. Putin has expressed openly that he longs for the 'good old days' of the Soviet Union
It's not in their interests to destroy us. It IS in their interests to create areas of destabilization and buffer zones of those unfriendly towards the West.