Nuclear Proliferation

Russia says bombing Iran will not work after Trump threats

North Korea says its status as a nuclear weapons state can never be reversed, KCNA says

US energy secretary sees tighter sanctions on Iran without deal

Iran's tangled nuclear dispute with the West

Iran sceptical over coming US talks, Iranian officials say

Russian lower house of parliament ratifies 20-year pact between Russia and Iran

Kremlin says it backs direct US-Iran talks over nuclear programme

Russia says the future of nuclear arms control with US and others looks bleak for now

Russia's Medvedev predicts more countries will acquire nuclear weapons

Trump says US, Iran set for direct nuclear talks; Tehran says they will be indirect

Kremlin says Russia is ready to do all it can to help resolve US-Iran nuclear tensions

Iran wants indirect talks with US, warns regional countries over strikes against it

North Korea leader Kim Jong Un visits military training base