The UK will send a squadron of Challenger 2 tanks to Ukraine to help push back Russia’s invasion, the defence secretary, Ben Wallace, has confirmed. Speaking in the House of Commons, Wallace announced what he described as 'the most significant package of combat to date to accelerate Ukrainian success'. The announcement makes the UK the first western power to supply the Ukrainians with main battle tanks, which would be used to help train Ukrainian troops, and will heap further pressure on Germany to approve a wider delivery of the vehicles this week