Lütjens continued planning preparations as the Battle of Britain raged. By September he had completed plans to land the entire German 16th Army under Ernst Busch between Deal and Hastings—the site of the last successful invasion of England in 1066—and the German 9th Army between Hastings and Worthing to the west. Lütjens' opinion on the chances of success are not known. The battles in Norway had left him without any major capital ship. In the event, Lütjens was never tested. The air battle over Britain was lost and by the end of 1940 plans for an invasion were postponed as Hitler turned eastward for a campaign against the Soviet Union. German naval strategy now turned to thoughts of siege and destroying Britain's shipping lanes which supplied the country from overseas and in particular North America.