Russia's decision to end its pledge not to deploy intermediate and long-range missiles, maintained after the US withdrawal from the INF Treaty, could lead to escalation and an arms race.

Trump's announcement of deploying nuclear submarines to "appropriate areas" appears to be a deterrent message to Russia after an online exchange with Medvedev.

President Trump announced the deployment of US nuclear submarines to "appropriate areas" in response to statements made by Medvedev.

Experts believe the US has transferred B61-12 bombs to Lakenheath airbase, marking the first nuclear weapons deployment in the UK since 2008.

For decades, Israel has maintained a policy of "strategic ambiguity" regarding its nuclear arsenal, while simultaneously working to prevent Iran from developing an atomic bomb.

The UK will purchase 12 F-35A fighter jets capable of carrying B-61 nuclear bombs to bolster its deterrent capabilities amid an "era of instability".