MOSCOW (Reuters) - Russias parliament approved the first nuclear arms reduction treaty with the United States in nearly a decade on Wednesday, voting to ratify the pact at the center of improved ties between the former Cold War foes. The Federation Council, Russias upper parliament chamber, unanimously passed a bill required for ratification of the New START treaty, which Presidents Barack Obama and Dmitry Medvedev signed in April 2010. The treaty, approved by the US Senate last month and by Russias lower house of parliament on Tuesday, will commit the countries to ceilings of 1,550 deployed strategic warheads in seven years. It limits each side to 700 deployed long-range missiles and bombers and establishes verification rules, absent since the US-Soviet Strategic Arms Reduction Treaty (START I) expired in 2009, enabling them to keep tabs on each others arsenals.