NATO members, particularly those in eastern Europe, fear a Russian invasion of their territory. By stationing some of its nuclear weapons in the U.K. again, the U.S. could ease those fears.
Iran’s pursuit of nuclear weapons centers on producing weapons-grade uranium. Here’s what reports about Iran enriching uranium indicate about its progress toward the bomb.
North Korea’s test of two new missile systems have stoked fears of a nuclear confrontation in Asia. But the North Korean leader may not be as unstable as he is made out.
Calls to keep talking are getting louder out of fear of escalation and ultimately war – but why are diplomatic relations so difficult for Nato and Russia?
Iran’s leaders are threatening to breach a 2015 agreement that froze their country’s nuclear program. What is uranium enrichment, and what would it mean for Iran’s ability to build nuclear weapons?
North Korea is a major military threat to the US and its Asian allies, but exactly how powerful are its nuclear weapons? An earth scientist explains why it’s hard to answer this question.
Exporting nuclear technology is lucrative, but without strict safeguards, buyers could divert it into bomb programs. Why is Saudi Arabia shopping for nuclear power, and should the US provide it?