British soldiers are fighting a Russian invasion from a platform on the London Underground in a wargame that reveals the UK must invest much more in defence - or risk defeat. In the scenario, the year is 2030, and the troops are part of a UK-led NATO headquarters that has rapidly deployed to Estonia after Russian troops attacked the Baltic states in the opening salvo of what could become World War Three. #skynews #UK SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/