UK PM to join delegation of leaders lobbying US president to step up suppliesBurnham plans trip to New York as Ukraine pleads for US-made missilesKremlin spokesperson Dmitry Peskov has accused Andy Burnham of wanting the conflict in Ukraine to continue, saying the UK prime minister and Finnish president Alexander Stubb belonged to the “party of war”, Russian media reported.During a visit to Kyiv yesterday, Stubb said he supported Ukraine’s long-range strikes on Russian territory, arguing t