New Books In Military History

Dropping the atomic bombs on Japan during World War II was, arguably, the most controversial decision of the 20th century. The responsibility for that “decision” has logically fallen on US President Harry S. Truman. But in The Most Awful Responsibility: Truman and the Secret Struggle for Control of the Atomic Age (Harper, 2025), Alex Wellerstein argues that Truman's actual decision wasn’t what everyone thinks it was. The conventional narrative is that American leaders had a choice: Invade Japan, which would have cost millions of Allied and Japanese lives, or instead, use the atom bomb in the hope of convincing Japan to surrender. Truman, the story goes, carefully weighed the pros and cons before deciding that the atomic bomb would be used against Japanese cities, as the lesser of two evils. But nuclear historian Alex Wellerstein argues that is not what happened. Not only did Truman not take part in the decision to use the bomb, but the one major decision that he did make was a very different one — one that