After four years since Russia's full-scale invasion of Ukraine, Professor Michael Clarke is asking the question: is Vladimir Putin winning or losing in Ukraine? Sky's military analyst takes you through the dramatic moments from the frontline, the diplomacy, and the state of Russia's economy. Live updates: https://news.sky.com/story/ukraine-war-latest-vladimir-putin-has-started-wwiii-zelenskyy-says-on-cusp-of-war-anniversary-12541713 #ukraine #russia #michaelclarke #ukrainewar #putin SUBSCRIBE