A joint approach to institutional responsibility for amphibious warfare served British needs during the Second World War but contributed to poor results after 1945. British capabilities did not recover until amphibious warfare became the particular responsibility of the naval service.
"“Neither Fish nor Fowl nor Yet Good Red Herring”—Joint Institutions, Single-Service Priorities, and Amphibious Capabilities in Postwar Britain,"
Naval War College Review: Vol. 73
, Article 7.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol73/iss4/7