Swedish think tank, made little progress on nuclear disarmament warned Swedish think tank, made little progress on nuclear disarmament warned

Little progress made towards global nuclear disarmament, nuclear weapons, despite the shrinking number of well-known Swedish Association said on Tuesday.

More than 5,000 pieces of nuclear weapons are deployed and ready for use, including nearly 2,000 that are kept in a state of high operational alert, said the Stockholm International Peace Research Institute (SIPRI) in its 2011 yearbook.

In all, there are more than 20,500 pieces of nuclear arms in the world, a drop of more than 2,000 since 2009, according to it.

The two major nuclear powers, Russia and the United States, possess 11,000 and 8,500 nuclear warheads respectively in 2011, including 2,427 and 2,150 deployed, the yearbook said.

In the U.S. and Russian strategic nuclear forces of the moderate reduction in April 2010 was adopted, according to a new START treaty, but not currently deployed two new nuclear weapons delivery systems or have announced plans to do so, and appears determined to retain their nuclear arsenals uncertain future, the Stockholm International Peace Research Institute said.

"This is an extension to the said the new cuts by the United States and Russia agreed to cut is a real step towards nuclear disarmament, nuclear power when their plan is a time scale, it contains a few decades, when the modernization of nuclear weapons is their the main priority to do the defense policy, "the Stockholm International Peace Research Institute Senior Fellow Shannon Kyle said in a statement.

Stockholm International Peace Research Institute said that it is an independent international body dedicated to conflict, arms, arms control and disarmament.