suraj.sun sends this quote from an article at the BBC:
"Russia says it is prepared to use 'destructive force pre-emptively' if the U.S. goes ahead with controversial plans for a missile defense system based in Central Europe. The warning came after the Russian defense minister said talks on missile defense were nearing a dead end. Moscow fears that missile interceptors would be a threat to Russia's security. But the U.S. and NATO say they are intended to protect against attacks from Iran or North Korea. 'A decision to use destructive force pre-emptively will be taken if the situation worsens,' chief of the Russian defense staff Gen Nikolai Makarov said. President Barack Obama ... scrapped plans for a network of bases spread across Poland and the Czech Republic with the capacity to intercept long-range missiles. But in 2010, the U.S. signed an agreement with Poland to use an old airstrip at Redzikowo, near the Baltic coast, as a missile defense base."