A global trade map illustrates the Royal Navy's priorities in a possible war with Japan. British convoy routes required protection, while planners hoped to close vulnerable Japanese routes and make much of the Indian Ocean safe enough for less intensive escort. The Gilbert Islands and Rabaul offered Town-class cruisers access to several enemy trade lines without tying them to the closest imperial ports. This operational geography helps explain why endurance and independent action shaped the class more strongly than a narrow fleet-battle role.
Chapter · 28:21-31:07
The Far East trade map behind Town-class deployments
Royal Navy planners placed long-range cruisers where they could protect British routes while attacking several Japanese trade arteries.