The British response calculation was shaped by losses already suffered before Operation Berlin. Royal Oak had been sunk, while Courageous and Glorious removed two of the fleet's key pre-Ark Royal carrier postings. Those carrier losses also killed experienced personnel and many officers qualified in damage control. The disasters followed departures from Royal Navy carrier doctrine and anti-submarine exercises whose controlled conditions encouraged unsafe assumptions.
Notable Point · 49:21-50:36
Carrier losses reduced Britain's response depth
Britain lost two large carriers with Courageous and Glorious, along with concentrated carrier experience and many damage-control-qualified personnel.