The UK’s Chief of the Defence Staff has urged Britons not to head to Ukraine to fight against Russia, delivering a clear rebuke to Foreign Secretary Liz Truss after she expressed support for those joining the fight. Admiral Sir Tony Radakin told the BBC’s Sunday Morning programme: “We’ve been very clear that it’s unlawful as well as unhelpful for UK military and for the UK population to start going towards Ukraine in that sense. “Support from the UK, support in whatever way you can. But this isn’t really something that you want to rush to in terms of the sound of gunfire. This is about sensible support based in the UK.” Last week, Truss said she would “absolutely” support anyone who wanted to fight, with a number of Britons keen to help Ukraine defend itself against Vladimir Putin’s invasion. Asked if the Foreign Secretary should not have made the suggestion, …