The Democratic People’s Republic of Korea (DPRK) has pursued a nuclear weapons program for decades. In 2006, despite sanctions and economic hardship, North Korea tested its first nuclear weapon. It has since conducted two more successful tests in 2009 and 2013.
That is pretty much the extent of unclassified knowledge about Pyongyang’s nuclear arsenal.
North Korea openly admits it has nuclear weapons. In fact, the hermit kingdom brags about its arsenal and regularly threatens to annihilate its enemies. Other than that, North Korea has been vague about its nukes and declines to discuss details.
It’s no surprise that little is known about North Korea’s nuclear program. Information about a country’s nukes can be hard to come by, even in free societies like Israel’s. But the Stalinist-inspired North Korean dictatorship is one of the most isolated regimes on Earth, and information coming in and out of the country is tightly controlled.
As a result, almost all discussion about the North Korean nuclear program is based on guesses and estimates. We can make some very good guesses about the country’s nuclear goals, but invariably some guesses will be better than others. Here are five guesses we can make about the North Korean nuclear program.
1. Nuclear weapons are meant to guarantee the security of the regime
The 1991 Persian Gulf War was not just a disaster for Saddam Hussein. On the other side of the world, the North Korean regime stood by and helplessly watched as the Iraqi military — outfitted similarly to the Korean People’s Army — was destroyed in a matter of days. A revolution in military affairs, combined with a new generation of weapons and tactics demonstrated the increasing irrelevance of sheer numbers.
The lesson was clear: the days of North Korea’s military might protecting the regime were over. Kim Jong Il, who assumed power in 1994, made the production of nuclear weapons — and the means to deliver them — his number one priority.
Being described as a member of the “Axis of Evil” in 2001 undoubtedly added to his sense of urgency. Nor did Allied military action in 2011 against Muammar Gaddafi’s Libyan regime after it gave up its program to develop weapons of mass destruction reassure Pyongyang.
Kim succeeded in his plan. Thanks to North Korean nuclear weapons and the uncertainty surrounding them, the United States and South Korea seem unlikely to undertake major military action against Pyongyang, lest it trigger a nuclear response from the DPRK. The North Korean regime is now virtually invulnerable to outside threats.
The North Korean bomb is now a key part of the regime’s survival strategy. It may be the survival strategy.
2. The number of North Korean nuclear weapons is unknown
We know the North has had at least three nuclear weapons — the three it tested. We don’t know how many more it has stockpiled. North Korea has not stated how many nuclear weapons it has, and nobody outside of Pyongyang knows for sure. Estimating North Korea’s nuclear arsenal is made even more difficult because its early weapons may have been inefficient designs with a relatively low explosive yield.
In 2008, North Korea declared it had 38.5 kilograms of weapons-grade plutonium. It also has highly enriched uranium (HEU) that it can use to build a nuclear weapon, but the DPRK has not declared how much of the material it has. North Korea also claims it restarted the Yongbyon nuclear plant in 2013, meaning it has been producing fissionable material for the last two years.
In 2012, analyst David Albright estimated North Korea had enough material to build up to eleven nuclear weapons. In 2015, the US-Korea Institute at SAIS estimated it had between ten and sixteen devices, of those between six and eight were made of plutonium and another four to eight made out of HEU. Further, the institute claimed that under the projected worst case scenario, North Korea could have 100 weapons by 2020.
2. Current methods of delivery for the North’s nukes are unknown
There are a limited number of ways to deliver a nuclear weapon to a target. Bombs, artillery shells, and missiles based on aircraft, ships or ground vehicles are all possible delivery systems. Most, but not all, require miniaturization and ruggedization to allow them to survive the journey to the target.
North Korea may have mastered none of these systems, or it may have mastered all of them.
North Korea has worked for decades to improve its missile force, turning intermediate-range ballistic missiles into something that can hit the United States. It has also been working on making a weapon small and durable enough to arm a missile. North Korea claimed that its 2013 nuclear test involved miniaturizing a weapon.
In its 2014 defense white paper, South Korea stated the North Korean regime has the ability to place a nuclear weapon atop a ballistic missile. Joel Wit and Sun Young Ahn of the U.S.-Korea Institute assess the North as being able to fit a nuclear weapon on a Nodong medium range nuclear missile or Taepodong-2 long-range ballistic missile.
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