Russia has warned of a breach of its relations with Washington and summoned the US ambassador in Moscow for an official protest over Joe Biden’s labelling of Vladimir Putin as a war criminal, as the US president held talks with European allies on efforts to stop the Russian invasion of Ukraine.
Biden talked to the leaders of the UK, France, Germany and Italy on Monday as part of his effort to maintain a unified front to Moscow, amid signs of cracks within the EU on how far to go in imposing sanctions on Russian oil and gas.
