Successful denuclearization will hinge on rigorous on-the-ground inspections and closing the gap between North Korea and the United States on what areas any agreement should cover.

The 1986 meeting in Iceland between U.S. President Ronald Reagan and Soviet leader Mikhail Gorbachev was like none other. It offers helpful context for a potential U.S.-North Korea arms control summi…

Iran could restart aspects of its nuclear program if President Trump declines to renew sanctions waivers this month, leaving major powers with few options for monitoring or restricting it.

In striking Syria without an international law justification, the United States leaves itself open to criticism and may invite similar behavior by other countries.

Armenia’s partnership agreement with the EU signals its shift toward Europe amid growing tensions between Russia and the West.