The Royal Navy's planned attack on Sea Lion logistics

Home Guard delay would give the Royal Navy time to cut an invasion force off from resupply. Battleships of the R class, cruisers and destroyers positioned around Britain were expected to converge on the invasion lanes from both sides. The plan is described as accepting severe naval losses to break the crossing, with older battleships prepared for a possible death ride. The assessment is that Germany lacked the fleet strength to secure those routes. Aircraft could obstruct daylight operations, but German night anti-shipping attacks were much less regular. Mediterranean experience is used to illustrate the opportunity for Royal Navy operations after dark.