The Royal Navy's maritime world in the 1930s was a system of oceanic roads and sea lines of communication. That network explains where the Navy expected to operate and what its ships had to protect. Commercial geography shaped fleet construction because the Navy built for the routes and movements its strategy had to secure.
Notable Point · 2:55-3:13
How trade geography shapes fleet construction
The map of oceanic roads connects the Royal Navy's deployments with the ships it built to carry out its strategy.