Sicily, Normandy, and authority to protect the landing area

The discussion connects experience in Sicily with preparations for Normandy. An island can be approached from several directions, while a continental landing has to secure a beachhead against a different set of threats. Protection of the landing area therefore needed a commander with clear authority over potentially conflicting movements. The example gives a destroyer flotilla commander priority to stop ships endangering the operation, even when senior officers were aboard. The extreme illustration of ramming an obstructing ship emphasizes how strongly that protective responsibility was framed.