Trump prompts US allies to reopen nuclear weapons debate

Since his return to power in January, the US president has criticised the transatlantic alliance, reopened direct dialogue with Russia and flattered North Korea's Kim Jong-Un with warm words. Trump's "provocative and inconsistent rhetoric", said Byong-Chul Lee, from the Institute of Far Eastern Studies at Kyungnam University, Seoul, has left allies' trust in the US deterrence "deeply shaken". In recent times, the risk of nuclear proliferation has come from states such as North Korea or Iran but...