Torpedo types shape deniability and allied submarine roles

Could American or British submarine involvement in a Taiwan conflict remain hidden?

Shared torpedo types could leave American involvement ambiguous. British weapons would be easier to identify, and the proposed British roles are carrier escort or North Atlantic cover.

Shared torpedo types could make American submarine attacks harder to distinguish from Taiwanese ones. British torpedoes would make Royal Navy involvement easier to identify. Britain's small submarine force would also face supply difficulties in the Pacific. Possible British roles in the scenario include escorting a deployed British carrier group or covering North Atlantic duties so additional American submarines can move to the Pacific.