During a debate in the House of Commons on 24 February, UK Prime Minister Boris Johnson said that "anyone who sends a Russian into battle to kill innocent Ukrainians" could face charges, comparing Putin to Slobodan Milošević. Johnson also expressed support for the formation of an international tribunal to try the perpetrators of war crimes committed during the war. Chris Bryant, a MP for the opposition Labour Party, said that Putin "must be brought to a court of law and end his days in prison".[51]