Ukrainian President Volodymyr Zelenskyy has delivered a defiant wartime message in Washington, DC, in which he thanked US leaders and “ordinary Americans” for supporting his country’s fight against Russia and reminded them that military assistance to Ukraine was not “charity” but an “investment” in a democratic world.Invoking memories of the United States’s victory over Nazi Germany in a key World War II battle, Zelenskyy also said there could be “no compromises” in trying to bring an end to Russia’s war on his country.In his first trip outside of Ukraine since the war began in February, Zelenskyy told a joint session of the US Senate and House of Representatives on Wednesday that he hoped they would continue to support his country’s war effort on a bipartisan basis.pic.twitter.com/OhclRtwIJy — Володимир Зеленський (@ZelenskyyUa) December 22, 2022 ‘United defence’ US President Joe Biden welcomed Zelenskyy to the Oval Office earlier on Wednesday, saying the US and Ukraine would continue to project a “united defence” as Russia wages a “brutal assault on Ukraine’s right to exist as a nation”.Zelenskyy’s arrival in the US comes just days after he made a daring and dangerous trip to what he called the hottest spot on the 1,300-kilometer (800-mile) front line of the war – the city of Bakhmut in Ukraine’s contested Donetsk region."