The Battle of Tinian: The Capture of the Atomic Bomb Island, July-August 1944

By John Grehan and Alexander Nicoll

At 02.45 hours on the morning of 6 August 1945, a Boeing B-29 Superfortress, named after the pilot’s mother, Enola Gay, lifted off from a tiny island deep in the Pacific Ocean on one of the most important missions in human history. The B-29 carried just one bomb; the target was Hiroshima.

The dropping of the first atomic bomb on Hiroshima, and of a second nuclear device on Nagasaki three days later, is known throughout the world. But what is often forgotten is that these missions were only possible following the savage battles to seize the Northern Mariana Islands – which, crucially, were within the B-29’s operational range of Japan. With the capture of these islands, the defeat of Hirohito’s Imperial Japan became a certainty as for the first time in the war land-based heavy bombers could fly all the way to Tokyo and back.

The sparsely-populated island of Tinian was turned into the biggest air base in the world. With six runways, four of which were built for the huge Superfortresses, it was from there that atomic destruction of Japan began.

But, before all this, had been the battle for the island – the preliminary naval bombardment, the aerial strikes and the amphibious assault. The story of that battle is told here, in the words and images of the men who took part in that memorable, and ultimately epoch-changing, campaign.

Part of this is another story, that of the warship USS Indianapolis. This Portland-class heavy cruiser was handed a secret mission ‘of the utmost significance to national security’, that of taking the enriched uranium and other vital parts of the atomic weapons to Tinian. Indianapolis succeeded in its mission, but was left to return to Pearl Harbor unescorted, resulting in one of the most unfortunate and gristly episodes in US maritime history.

Few stories encapsulate human endeavor, achievement, sacrifice, and failure in quite such stark contrasts as the taking of the island of Tinian, once the center of USAAF operations in the Pacific and now just a little-visited speck in the largest ocean in the world.

• Language: English
• Publisher: Pen and Sword
• Release date: Dec 30, 2023
• ISBN: 9781399085281

John Grehan

JOHN GREHAN has written, edited or contributed to more than 300 books and magazine articles covering a wide span of military history from the Iron Age to the recent conflict in Afghanistan. John has also appeared on local and national radio and television to advise on military history topics. He was employed as the Assistant Editor of Britain at War Magazine from its inception until 2014. John now devotes his time to writing and editing books.

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