December 7: The Assault on Pearl Harbor (1941)

The attack on Pearl Harbor on December 7, 1941, was a surprise military strike by the Empire of Japan on the United States Pacific Fleet stationed at Pearl Harbor, Hawaii. At the time, the U.S. was neutral in World War II. This attack was a pivotal moment that led to the U.S. declaring war on Japan the following day.

Prior to the attack, Japan and the U.S. were engaged in diplomatic negotiations regarding Japan's military actions in the Pacific. Japan aimed to secure access to critical resources and to eliminate any potential interference from the U.S. in its expansionist plans. The strike was planned by Isoroku Yamamoto with the objective of crippling the Pacific Fleet to facilitate Japan's military objectives in Southeast Asia.

On the morning of December 7th, the Japanese launched their assault around 7:48 a.m. Hawaiian time. The attack force comprised 353 aircraft that executed intense bombing runs in two waves. The result was devastating: of the eight U.S. battleships present, all were damaged and four sunk. Additionally, numerous U.S. aircraft were destroyed, with a total of 2,403 Americans killed and over a thousand wounded.

The attack was not solely limited to Pearl Harbor, as Japan simultaneously attacked U.S. territories in the Philippines, Guam, and Wake Island, as well as British positions in Southeast Asia. Despite the devastation at Pearl Harbor, three U.S. aircraft carriers were not present at the base during the attack, which ultimately played a crucial role in the U.S. Navy's response.

Following the attack, Japan declared war on the U.S. and the British Empire. The U.S., in turn, declared war on Japan the next day, marking its formal entry into World War II. The unprovoked nature of the attack spurred a robust sentiment in favor of war in the U.S., with President Franklin D. Roosevelt famously referring to December 7 as "a date which will live in infamy." This attack was the deadliest foreign assault on American soil until the September 11, 2001, terrorist attacks.

This historical moment holds significance beyond military history; for stamp collectors, the events surrounding Pearl Harbor can be commemorated through various postal items, such as first-day covers and stamps released in honor of those who served during WWII.

For a comprehensive account of the Pearl Harbor attack, please visit the article on Wikipedia.