HMS Diana (D126) was a member of the Daring-class destroyers. She was designed and constructed amid World War II, incorporating experiences from the Pacific campaign, such as longer range and the ability to effectively replenish at sea. Yarrow and Co. Ltd. (Yard No. 1846) constructed HMS Diana in Clydebank, Glasgow. She was laid down on April 3, 1947, and launched on Thursday, May 8, 1952, by Lady McGrigor, the wife of Admiral of the Fleet Sir Rhoderick McGrigor. HMS Diana was first put into service on March 29, 1954. During construction, the originally planned name, HMS Druid, was renamed to HMS Diana. HMS Diana was almost as big as a pre-war light cruiser, so at its time, it was regarded as a large destroyer. Along with her sister ship, HMS Decoy, she was acquired by the Peruvian Navy in 1969 and served until 1993.

Introduced in Update "Fire and Ice", HMS Diana and her predecessor share certain characteristics. She is far more resilient and durable due to her design for far-reaching operations. Nevertheless, HMS Diana is not an exception to the rule that the majority of early British destroyers lacked armour protection. This is a fatal flaw that greatly increases the risk of ammunition detonation, as the hull lacks any armour plates and the ammunition rack is situated above the waterline. To avoid being targeted, players should maintain some distance from the enemy.