The Battle of the Dnieper was a military campaign that took place in 1943 on the Eastern Front of World War II. It was one of the largest operations in World War II, involving almost 4,000,000 troops on both sides and stretching on a 1,400 kilometres (870 mi) long front. During its four-month duration, the eastern bank of the Dnieper was recovered from German forces by five of the Red Army's fronts, which conducted several assault river crossings to establish several lodgements on the western bank. Subsequently, Kiev was liberated in the Battle of Kiev.