Commercial ports and railways as wartime supply infrastructure

Larger ports need rail connections that bring in raw materials and carry export goods, so port investment extends inland. Britain would have to persuade colonial authorities and Dominion governments to fund these connected facilities. Australian ports illustrate the combined benefit: greater commercial capacity would also help move raw materials during war. Merchant wharves and their heavy cranes could accommodate warships and load battleship or cruiser ammunition. These investments would provide support capacity for naval expansion while retaining an economic purpose in peacetime.