Volodymyr Zelensky has claimed the UK must rejoin the EU if the US leaves NATO, as US President Donald Trump has threatened to pull away if the pact does not support his Middle East war. Trump, a fierce critic of the defence bloc, has been left unimpressed by fellow members and their refusal to get involved in his war with Iran. The Ukrainian leader said that in order to bolster Europe's defence against Russia, the UK ought to reset relations with the continent. Zelensky said on Friday: 'If the United States truly thinks about withdrawing from NATO, then European security...