Gallipoli's combined-operations lesson

Did the Allies learn anything major from Gallipoli?

Yes: ships and troops had to plan and act together, a lesson later embedded in British combined operations.

Coordination was the campaign's major lesson. Naval gunfire could suppress defenses, but soldiers were needed to occupy them and prevent Ottoman recovery. Roger Keyes later carried that experience into British combined operations, emphasizing direct communication between services and knowledge of what each partner intended to do. The passage points readers from Gallipoli's failure toward the institutional habits required for later amphibious warfare.