"America's Strategy in World Politics" was published in 1942, soon after the entry of the United States into World War II. Concerned with the balance of power, he argued that isolationism, which relied on the oceans to protect the United States ("hemispheric" or "quarter defense"), was bound to fail. His object was to prevent another US retreat, as what occurred after World War I. Isaiah Bowman commented in 1942, "On grounds of merit and public value "America’s Strategy in World Politics" should be read in not less than a million American home. Every government official responsible for policy should read it once a year for the next twenty years—even if he may not agree with some of the remedies proposed."