Famous examples of the single envelopment include Alexander the Great who used it at the in 331 BC. Robert E. Lee used the tactic at the Battle of Chancellorsville in 1863. During World War II, German General Erwin Rommel used it successfully at the Battle of Gazala, which led directly to his capture of Tobruk in 1941. Some of the famous double envelopments include Hannibal at the Battle of Cannae where he defeated the Roman army in . In 1781 during the American Revolutionary War, American general used it successfully against British general , causing many of the British soldiers to surrender. In the 1944 during Operation Overlord, German troops were caught in a double envelopment by British and American forces.