Obama in Berlin calls for US-Russia nuclear weapons cuts

US President Barack Obama has called for greater efforts to be made to reduce.                                      US and Russian nuclear arsenals.

Speaking at the Brandenburg Gate during a visit to the German capital, Berlin, he said he was confident the US could maintain its security while reducing its nuclear capacity by a third.
He also called for reductions in the number of tactical warheads in Europe.
However Russia's Deputy Prime Minister Dmitry Rogozin said Moscow "cannot take these assurances seriously".
The US and Russian signed a joint agreement in 2010 to mutually reduce their stockpiles of nuclear weapons to a maximum of 1,550 warheads and no more than 700 deployed launchers.