The annexation of the Crimean peninsula by Russia in 2014 was the biggest in Europe since WWII - but how did the Russians execute it? And what has happened in Crimea and Ukraine since? This is the story behind the stand off between Vladimir Putin's Russia and Ukraine today. Secret Wars Uncovered peels back the curtain to illuminate some of the most controversial and important military operations since the Second World War and reveals the facts behind battles we know barely anything about. Through animated graphics, Sky HISTORY investigates the advanced weaponry and undercover strategies that assisted these secret operations.