Fewer bombs, but nuclear states 'determined' to keep arsenals - SIPRI

VIENNA Sun Jun 15, 2014 11:14pm BST

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VIENNA (Reuters) - Nuclear-armed states are modernising their arsenals and appear determined to keep sizable numbers of such weapons of mass destruction for the foreseeable future, the SIPRI think-tank said in its annual report on Monday.

Five years after U.S. President Barack Obama set out a vision of a world without nuclear weapons, the findings by the Stockholm International Peace Research Institute made clear just how distant that goal remains.

While there has been a steady decline in the number of nuclear warheads in the world over the past five years, nine countries still had a total of 16,300 such weapons in early 2014 - down by around 5.6 percent from the previous year - of which some 4,000 were operational.

And the pace of reductions seems to be slowing compared with a decade ago, the Swedish think-tank said.

"Once again this year, the nuclear weapon-possessing states took little action to indicate a genuine willingness to work toward complete dismantlement of their nuclear arsenals," wrote SIPRI researchers Shannon Kile and Phillip Patton Schell.

The Cold War-era enemies United States and Russia together hold about 93 percent of the world's nuclear weapons and their reductions under the New Start treaty ratified in 2011 were the main factor behind the decline in global numbers.

SIPRI identified seven other nuclear weapon states - Britain, France, China, Pakistan, India, Israel and North Korea.

The United States, Russia, France, Britain and China are the world's five officially recognised nuclear weapons states. The four others are outside the global Non-Proliferation Treaty, designed to prevent the spread of atomic arms.

Non-nuclear weapon states often criticise the five for not sufficiently living up to their part of the central bargain of the 1970 NPT, when nations without atomic bombs pledged not to seek them and nuclear states agreed to pursue disarmament talks.

The United States and Russia "have extensive modernization programs under way for their remaining nuclear delivery systems, warheads, and production facilities", the SIPRI report said.

The nuclear arsenals of the others are considerably smaller, but they are "either developing or deploying new weapons or have announced their intention to do so".

NORTH KOREA'S NUCLEAR WEAPONS

Israel is widely assumed to be the Middle East's only nuclear-armed power, drawing frequent Iranian and Arab condemnation. Israel for its part accuses Iran of developing a capability to assemble such arms, a charge Tehran denies.

Obama gave new impetus to the often halting process of disarmament in his 2009 speech in Prague, and last year he proposed further cutting nuclear arsenals by a third.

However, his aim has produced mixed results so far, not least because of a plan by the United States and NATO to build an anti-missile shield around Western Europe, which Russia has said could erode its nuclear deterrent.

Moscow has frequently said it is unlikely to go for further cuts in its nuclear arsenal unless its concerns are addressed.

"Russia is in the middle of a broad upgrade of its strategic nuclear forces that over the next decade will retire all Soviet-era inter-continental ballistic missiles," SIPRI said.

Of the nine states covered in its report, SIPRI estimated that North Korea - which has carried out three nuclear tests since 2006 in defiance of international sanctions and condemnations - had the fewest weapons, with six to eight.

"There is an emerging consensus in the expert community that North Korea has produced a small number of nuclear weapons, as distinct from rudimentary nuclear explosive devices," it said.

While North Korea has long boasted of making strides in acquiring a "nuclear deterrent", there had been general scepticism that it could master the step of miniaturising a nuclear warhead to mount on a ballistic missile.

But there has been a shift in thinking since it conducted a nuclear test in February last year. There have been on-off indications that it is preparing another, and some experts now say it may be closer than previously thought to putting a nuclear warhead on a missile.

However, SIPRI said there was "no public evidence to date that it has developed a sufficiently compact nuclear warhead or other key technologies for a nuclear-armed ballistic missile".

(Editing by Kevin Liffey)

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