It is one of the most astonishing success stories in history. At one time, the English-speaking peoples of Britain and America controlled two thirds of the world’s agriculturally productive land. And, impressive as their landholdings were, their maritime reach was even more astounding.
These two powers controlled virtually every important oceanic choke point and sea gate on the planet. Oceanic trade and sea communication only existed to the extent that Britain and America allowed it. This domination of global trade turned these two peoples into economic superpowers.