Senior Science Fellow Philip Coyle was quoted in Politico. “I do think it changes the urgency to engage in North Korea,” said Philip Coyle, a former head of weapons testing for the Pentagon who is now at the Center for Arms Control and Nonproliferation in Washington. “Obviously, time is not on our side here, with […]
Fact Sheet: Multiple Independently-targetable Reentry Vehicle (MIRV)
Updated December 2024 Multiple Independently-targetable Reentry Vehicles (MIRVs) were originally developed in the early 1960s to permit a missile to deliver multiple nuclear warheads to different targets. In contrast to a traditional missile, which carries one warhead, MIRVs can carry multiple warheads. For instance, a Russian MIRVed missile under development may be able to carry […]
Senior Science Fellow Philip Coyle’s Interview in The Cipher Brief
Read the full piece in The Cipher Brief here. North Korea’s July intercontinental ballistic missile (ICBM) tests have crossed a new capability threshold, allowing Pyongyang to potentially reach the continental United States. Further, U.S. intelligence estimates predict that North Korea now possesses the technology to miniaturize a nuclear warhead and place it on an ICBM. […]
Board Member Dr. Jim Walsh’s Op-Ed in Al Jazeera
Read the full op-ed in Al Jazeera here. This week, the United States and its ally South Korea began large-scale military exercises, and North Korea responded by threatening “merciless retaliation”. This follows Pyongyang’s recent back-and-forth over whether to strike Guam and President Trump’s warning that North Korea was facing a future of “fire and fury”. […]
National Advisory Board Member Amb. Thomas Graham Jr.’s op-ed in Richmond Times-Dispatch
Read the full op-ed in Richmond Times-Dispatch here. On Aug. 5, the United Nations Security Council unanimously approved a powerful sanctions resolution on North Korea, said to be the strictest imposed on a country in a generation. These new sanctions were in response to North Korea’s reckless actions in testing intercontinental ballistic missiles. Two days […]

