US vice president says Europe will be expected to play the ‘leading role’ in guaranteeing Kyiv’s post-war security.European countries will have to shoulder the “lion’s share” of guaranteeing Ukraine’s security in the event of a deal to end Russia’s war in the country, United States Vice President JD Vance has said.In an interview with Fox News on Wednesday, Vance said the US should not have to “carry the burden” of underpinning Kyiv’s post-war security.“I think that we should be helpful if it’s necessary to stop the war and to stop the killing. But I think that we should expect, and the president certainly expects, Europe to play the leading role here,” Vance said in an interview with Fox News host Laura Ingraham.“What he said very clearly is: Look, the United States is open to have the conversation, but we’re not going to make commitments until we figure out what is going to be necessary to stop the war in the first place.”Vance’s comments came a day after US President Donald Trump ruled out the possibility of US troops in Ukraine, while suggesting that Washington could provide support “by air”.The issue of post-war security guarantees for Ukraine has been a major question mark over Trump’s push to end the three-and-a-half-year-l …