Carrier doctrine is described as prescribing a peacetime screen of a light cruiser and four destroyers, with a larger destroyer force expected in war. Glorious had two destroyers. She also lacked airborne reconnaissance. The contrast makes the loss a question of how the carrier was operated and protected, beyond the vulnerability of the hull itself.
Notable Point · 3:58:18-3:59:16
Glorious and the gap between escort doctrine and the ships actually present
The two destroyers with Glorious are compared with the escort and reconnaissance arrangements described in carrier doctrine.