SCIL - 120 | The Biggest Battles of the Pacific Theater The History of the Decisive Campaigns that Led to Victory Over Japan in World War II

*Includes pictures
*Includes accounts of the campaigns
*Includes a bibliography for further reading

The waters of the Pacific Ocean – stretching deep blue under the tropical sun, or scourged by typhoons – provided World War II's most far-flung battlefield. Two of the world's premier mid 20th century maritime powers, the United States of American and the Empire of Japan, grappled for supremacy across that vast expanse.

Although not as well-remembered as D-Day or even the attack at Pearl Harbor that preceded it, the Battle of Midway was one of the most unique and important battles fought during World War II. In fact, the turning point in the Pacific theater took place between June 4-7, 1942 as a Japanese fleet moved a sizable fleet intending to occupy Midway Island and draw the American navy near. Instead, American aircraft flying from three aircraft carriers that had been away from Pearl Harbor in December 1941 got a bearing on the Japanese fleet and sunk four Japanese aircraft carriers, permanently crippling Japan’s navy. The Battle of Midway was one of the first major naval battles in history where the enemy fleets never actually saw or came into contact with each other.

The Guadalcanal Campaign, which ran from August 1942 to February 1943, was a bitter and protracted struggle that also happened to be a strange and transitional confrontation quite unlike any other in the long Pacific War. In conjunction with the American victory at the Battle of Midway, Guadalcanal represented the crucial moment when the balance of power in the Pacific tipped in favor of the Allies, but the idea that Guadalcanal would be such a significant battle would have come as a surprise to military strategists and planners on both sides.

By the spring of 1943, American military planners had begun to create a plan to dislodge Japan from east and southeast Asia. When Admiral Chester Nimitz was directed to capture an island in the Bonin group, Iwo Jima stood out for its importance in making progress against the mainland, with three airfields that would allow American air forces to attack the Japanese mainland. But the Japanese were also well aware of how important Iwo Jima was, and they fought desperately in bunkers and tunnels that required the Americans to carefully clear them out gradually. Less than 5% of the Japanese soldiers on Iwo Jima were taken alive, and American casualties were estimated at 26,000, with 6,800 killed or captured. 

Given the horrific nature of the combat put up by the Japanese, it’s no surprise that the final campaigns had a profound psychological effect on the men who fought, but it also greatly influenced the thinking of military leaders who were planning subsequent campaigns, including a potential invasion of the Japanese mainland. The casualty tolls ultimately helped compel President Truman to use the atomic bombs on Hiroshima and Nagasaki in an effort to end the war before having to attempt such an invasion.

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