On missile defence, Mr Putin said that if the Bush administration installed elements of a missile shield in eastern Europe, Russia would retaliate by training nuclear missiles on European targets. Russia has not specifically aimed its missiles at Europe since the end of the cold war but, asked if it might do so again if the US missile shield went ahead, Mr Putin said: "Of course we are returning to those times. It is clear that if a part of the US nuclear capability turns up in Europe, and, in the opinion of our military specialists will threaten us, then we are forced to take corresponding steps in response.""What will those steps be? Naturally, we will have to have new targets in Europe."He said: "We want to be heard, we want our position to be understood. But if that does not happen, we lift from ourselves any responsibility for the steps we take in response, because we are not the ones who are initating the arms race in Europe."