There is a 'low to medium risk of Russian invasion of Ukraine in the next few weeks', US military chief in Europe says after Kiev warned Putin 'is threatening us with destruction' and Biden called back warships The head of US forces in Europe, General Tod Wolters, was giving evidence to the Senate Armed Services Committee in Washington when he was asked about the risk of invasion in that timeframe The general insisted the chances were 'low to medium,' adding that it would depend on a number of factors but, based on the current trajectory and disposition of Russian forces, that likelihood would start to wane