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Defense

SIPRI: Nuclear arms decline amid modernization efforts

A new report by SIPRI says the pace of nuclear arms reduction has slowed, in part due to efforts to modernize delivery systems, such as missiles. The data shows states aren't prepared to "give up their nuclear arsenals."

Over the past year, the number of nuclear weapons has decreased but investment in modernizing arsenals has risen, according to a report published by the Stockholm International Peace Research Institute (SIPRI) on Monday.

As of 2017, nine states are in possession of approximately 14,935 nuclear weapons, a slight reduction compared 15,395 last year. The decrease in nuclear arms is notably due to efforts by the US and Russia, which possess 93 percent of all nuclear weapons in the world.

However, the nine nuclear weapon-possessing states - the US, Russia, UK, France, China, India, Pakistan, Israel and North Korea - have all developed or deployed new nuclear weapon delivery systems, or announced their intention to do so.

"Despite the recent progress in international talks on a treaty banning nuclear weapons, long-term modernizations programs are under way in all nine states," said Shannon Kile, a senior researcher at SIPRI. "This suggests that none of these states will be prepared to give up their nuclear arsenals for the foreseeable future."

Notably, the US is expected to spend $400 billion (350 billion euros) between 2017 and 2026 to maintain and comprehensively update its nuclear forces, according to the report. SIPRI cited estimates that Washington may spend up to $1 trillion over the next 30 years to modernize its nuclear weapons program.

"The projected increases in US spending are not unexpected," said SIPRI Associate Senior Fellow Hans Kristensen. "The current US administration is continuing the ambitious nuclear modernizations plans set out by President Barack Obama."

North Korea

In 2016, North Korea carried out two nuclear test explosions in a move that sparked international concern about the progress of Pyongyang's nuclear weapons program.

Since then, the communist nation has conducted several missile delivery tests, with the intention of developing an intercontinental ballistic missile that could reach American soil.

SIPRI noted in its report that while it is unlikely that Pyongyang has developed a sufficiently compact nuclear warhead to reach mainland US, analysts believe that is could build a "miniaturized" warhead deliverable by short- and medium- range missiles.

"North Korea appears to have made technical progress in its military nuclear and ballistic missile programs and may have built up to 20 nuclear warheads," the report said. "However, there is no open-source evidence that North Korea has produced nuclear warheads that can be carried on ballistic missiles."

The Pukguksong missile is a North Korea-produced projectile that Pyongyang claims is nuclear-capable

The "Pukguksong" missile is a North Korea-produced projectile that Pyongyang claims is "nuclear-capable"

European warheads

Only two EU nations are in possession of nuclear weapons, namely the UK and France. As of January, London's nuclear weapons arsenal contained approximately 215 warheads, of which 120 were considered operational.

The UK parliament last year backed the successor program to Trident nuclear program. However, the government announced that the program would not be funded outright, and instead would receive investment in stages.

On the other hand, France's arsenal comprised roughly 300 warheads. Paris has signaled its desire to modernize its nuclear weapons program. It also plans to have a next-generation ballistic missile submarine in operation by 2035, according to SIPRI.

"The French Ministry of Defense has initiated studies for a successor missile, with a focus on enhanced stealth and hypersonic technologies," the report said.

Developments in Asia

In Asia, China leads with the largest nuclear arsenal, comprising roughly 270 warheads. Pakistan comes in second with an arsenal of up to 140 warheads, while India trails slightly behind with 130 of them.

"China has embarked on a long-term modernization program focused on making qualitative improvements to its nuclear forces rather than on significantly increasing their size," the report said.

Read more: Chinese President Xi Jinping calls for nuclear disarmament

On India and Pakistan, SIPRI noted that both were in the process of expanding their nuclear capabilities by land, sea and air, which could have consequences in the near future.

"India and Pakistan are expanding their military fissile material production capabilities on a scale that may lead to significant increases in the size of their nuclear weapon inventories over the next decade," the report said.

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