"It wasn't us who initiated a new round of arms race," Putin said when asked about the missile tests at a news conference after talks with his Greek counterpart. "There is no reason to fear these actions by Russia, they aren't aggressive. It's merely a response to tough and unfounded unilateral actions by our partners," Putin said. Russia tested a new ballistic missile capable of carrying multiple nuclear warheads and a new cruise missile on Tuesday. "These actions are aimed at preserving a global balance." "And what about our partners? They are filling Eastern Europe with new weapons. A new base in Bulgaria, another one in Romania, a [missile defence] site in Poland and a radar in the Czech Republic. "What are we supposed to do? We can't just sit back and look at that." http://english.aljazeera.net/NR/exeres/B553494A-A8B9-429B-8248-4C2C1521DF95.htm They're testing weapons that could effect the safety of the US. Should we invade?