a man looking at a wall map of Japan and east Asia

Did the U.S. plan to drop more than two atomic bombs on Japan?

Seventy-five years ago in summer 1945, the United States' plans for unleashing its atomic bombs went beyond Hiroshima and Nagasaki.

Focusing his gaze on Japan, Maj. Gen. Leslie R. Groves, head of the Manhattan Project that built the first atomic bombs, studies a map of the Pacific theater in summer 1945.
AGE FOTOSTOCK
This content is Subscriber-Exclusive
You must have a National Geographic subscription to explore this article.

Read This Next

Did this mysterious human relative bury its dead?
This new birth control for cats doesn't require surgery
How the Zoot Suit Riots changed America

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet