From Medway to Scapa Flow: hubris at naval bases

The comparison between Medway and Scapa Flow concerns confidence in naval bases whose defences had not been adequately prepared or checked. After 1667, the Royal Navy became more conscious of the need for troops, shore batteries, and secure approaches. In the account of Scapa Flow in 1939, planners believed the defences were adequate without recognizing how worn they had become. A viewer gives HMS Royal Oak's losses as 835 of 1,059 crew, a figure accepted in the reply. The criticism of interwar preparation includes delayed concrete work and the failure to provide more sloops despite their availability outside treaty limits. Assumed security could therefore leave major warships exposed when the base's actual readiness had gone unchecked.