
On this date in 1941, Japan launched a carrier-based strike on U.S. military forces based in Pearl Harbor, Hawaii. Their strategy was to convince the country and its leaders that war with Japan would be futile. They achieved tactical surprise as no warning of an attack had yet been received. While decryption of their codes had revealed their intent, the warning did not reach Pearl Harbor until after the attack had begun. The Japanese legation in Washington did not deliver their government’s official response declaring war until after the attack due to problems in transcribing the message. The attack began at 07:55 local time (12:55 p.m. in Washington D.C.). It was early afternoon when President Roosevelt was notified by Secretary of War Henry Stimson of the attack. There was some doubt among some staff as to the validity of the report, but President Roosevelt believed it. And subsequent reports would show it was true. Radio was soon reporting on it as well and the entire nation soon learned of the shocking event that had taken place in the faraway location.
The purpose of the attack was to seriously cripple the U.S. Naval and Army Air Corp operations. The surprise was effective in sinking or crippling numerous ships and destroying most of the planes on the ground. However, the primary target of the Japanese, the aircraft carriers, were not there and they had no idea where they were. After conducting two strikes and contemplating a third, Admiral Nagumo decided to retire due to deteriorating weather, that they were at the far end of logistical support, and they had no idea where the three carriers were. Captain Minoru Genda argued for a third strike and invasion to taking out the storage, maintenance, and docking facilities in Pearl Harbor. Nagumo realized also in the time it would take to make a third strike that American forces might counterattack. Additionally, the attack group was low on fuel requiring them to conserve fuel. Later Admiral Yamamoto would say that it was a mistake as it allowed the U.S. to come back quickly.

National Archives Identifier: 520601/Local Identifier: 80-G-32420.
Public Domain
Most of those who died at Pearl were sailors aboard the ships that were damaged or sunk. Of the 2,008 sailors killed, 1,177 were killed when the forward magazine on the USS Arizona exploded. Eighteen ships were sunk, beached, or run aground. 188 aircraft (mostly Army Air Corps) destroyed, 159 damaged. Most of the planes were destroyed on the ground. Only eight pilots got airborne and did attack Japanese aircraft but only one was shot down. Some pilots were killed or shot down later by friendly fire. Five inbound planes from USS Enterprise were shot down. The Navy lost 24 of its PBY planes. Additional casualties came from when Japanese attacked barracks. 2,403 Americans killed and 1,178 others were wounded. Since the U.S. was not at war, they are all classified as non-combatants. The Japanese lost 55 airmen, nine submariners and one captured. They lost 29 planes in battle and 74 were damaged by antiaircraft fire.
“The Japanese Government regrets to have to notify hereby the American Government that in view of the attitude of the American Government it cannot but consider that it is impossible to reach an agreement through further negotiations.”
As news broke across the country of the attack, the Japanese ambassador met with Secretary of State Cordell Hull at 2:30 pm to deliver the Japanese response. The long message listed the Japanese concerns and accusations about seeking peace ended with it saying they could no longer accept the current proposal and no further negotiations. Cordell Hull, after reading the full document, could not believe what he just read. According to Time magazine, he was visibly angry and responded: “In all my 50 years of public service I have never seen a document that was more crowded with infamous falsehoods and distortions — infamous falsehoods and distortions on a scale so huge that I never imagined until today that any government on this planet was capable of uttering them.” Japanese ambassador Admiral Kichisaburo Nomura (retired) remained silent along with an accompanying official. Hull would note in his diary later that he knew that Nomura was sincerely working for peace and totally unaware of the planned attack. In fact, the Japanese foreign office was never told about the planned attack. Nomura and the rest of his staff were interned and in 1942 sent to Portuguese East Africa where they were exchanged for Americans interned in Japan.
People enjoying a pleasant Sunday afternoon now were listening to news reports and early editions of newspapers screamed the headlines of the Japanese attack on Pearl Harbor. Military recruitment centers found lines of young men wanting to join up to fight the Japanese. The isolationist sentiment that once screamed for peace was ushered to the rear while most of the nation united against Japan. Old political foes in Congress now joined together supporting war. And on 8 November 1941, President Roosevelt addressed a joint session of Congress–carried live on radio–and asked for a declaration of war.
Mr. Vice President, Mr. Speaker, members of the Senate and the House of Representatives:
Yesterday, December 7th, 1941 – a date which will live in infamy – the United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan.
The United States was at peace with that nation, and, at the solicitation of Japan, was still in conversation with its government and its Emperor looking toward the maintenance of peace in the Pacific.
Indeed, one hour after Japanese air squadrons had commenced bombing in the American island of Oahu, the Japanese Ambassador to the United States and his colleague delivered to our Secretary of State a formal reply to a recent American message. And, while this reply stated that it seemed useless to continue the existing diplomatic negotiations, it contained no threat or hint of war or of armed attack.
It will be recorded that the distance of Hawaii from Japan makes it obvious that the attack was deliberately planned many days or even weeks ago. During the intervening time the Japanese Government has deliberately sought to deceive the United States by false statements and expressions of hope for continued peace.
The attack yesterday on the Hawaiian Islands has caused severe damage to American naval and military forces. I regret to tell you that very many American lives have been lost. In addition, American ships have been reported torpedoed on the high seas between San Francisco and Honolulu.
Yesterday the Japanese Government also launched an attack against Malaya.
Last night Japanese forces attacked Hong Kong.
Last night Japanese forces attacked Guam.
Last night Japanese forces attacked the Philippine Islands.
Last night the Japanese attacked Wake Island.
And this morning the Japanese attacked Midway Island.
Japan has therefore undertaken a surprise offensive extending throughout the Pacific area. The facts of yesterday and today speak for themselves. The people of the United States have already formed their opinions and well understand the implications to the very life and safety of our nation.
As Commander-in-Chief of the Army and Navy I have directed that all measures be taken for our defense, that always will our whole nation remember the character of the onslaught against us.
No matter how long it may take us to overcome this premeditated invasion, the American people, in their righteous might, will win through to absolute victory.
I believe that I interpret the will of the Congress and of the people when I assert that we will not only defend ourselves to the uttermost but will make it very certain that this form of treachery shall never again endanger us.
Hostilities exist. There is no blinking at the fact that our people, our territory and our interests are in grave danger.
With confidence in our armed forces, with the unbounding determination of our people, we will gain the inevitable triumph. So help us God.
I ask that the Congress declare that since the unprovoked and dastardly attack by Japan on Sunday, December 7th, 1941, a state of war has existed between the United States and the Japanese Empire.
Congress declared war an hour later. The attack did not result in America cowering but uniting it. Both Italy and Germany, as members of the Pact of Steel, declared war on the United States. Roosevelt was surprised at both doing so. The German High Command was unprepared for war with America (they had planned it would happen some years later) and now faced a two-front war, something they had hoped to avoid. Italians were puzzled that Mussolini declared war on America and side with Germany. It was a foolish decision by Mussolini that would ultimately lead to his ouster in 1943.
Aftermath
Japan had control of the Pacific until June 1942. That is when the U.S. Navy engaged the Japanese at the Battle of Midway. At the end of the battle, four Japanese aircraft carriers were sunk to our one (the Yorktown). It was a shocking loss to the Japanese (and one they kept secret for as long as possible). The Doolittle Raid earlier that year had convinced them to take on the American Navy directly. They did and lost spectacularly. And it shifted the balance of power in the Pacific. Admiral Yamamoto, who supported the attack on Pearl Harbor, had expressed concerns about a long-term conflict with America. “I shall run wild considerably for the first six months or a year, but I have utterly no confidence for the second and third years,” he noted in memos before the war began. The famous Sleeping Giant quote though is purely fictional coming primarily from the movie Tora! Tora! Tora!.
Yamamoto would not survive the war. President Roosevelt ordered that he be taken care of for his part in planning the Pearl Harbor attack. Thanks to the work of U.S. Naval Intelligence that had broken Japanese codes (code named Magic), his travel plans to the South Pacific in April 1943 were learned. Orders were given and select pilots were used to target a very important high officer but were not told who it was. On 18 April 1943, a squadron of Lockheed P-38’s was assigned to intercept and bring down his transport being escorted by Japanese zeroes. There were two Japanese transports. After a dogfight with the Zeroes and transports, the transport with Yamamoto’s plane crashed into the jungle north of Buin, Papua New Guinea. Japanese search parties found his body, thrown from the aircraft and under a tree. He had two .50 caliber bullet wounds, one in his left shoulder and the other that had exited through his right eye. The true manner of his death was hidden from the Japanese public and not revealed until long after the war had ended. He was cremated, given a state funeral, and given posthumous titles and awards. Today the place where his plane crashed is a tourist attraction.
Sources
———. “Pearl Harbor: Attack, Deaths & Facts.” HISTORY. Last modified December 1, 2025. Accessed December 3, 2025. https://www.history.com/articles/pearl-harbor.
“Pearl Harbor Attack.” Encyclopedia Britannica. Last modified November 30, 2025. Accessed December 3, 2025. https://www.britannica.com/event/Pearl-Harbor-attack.
“Pearl Harbor Attack, December 7, 1941,” The National WWII Museum | New Orleans, last modified December 7, 2001, accessed December 3, 2025, https://www.nationalww2museum.org/war/topics/pearl-harbor-december-7-1941.
“Pearl Harbor Attack, December 7, 1941,” The National WWII Museum | New Orleans, last modified December 7, 2001, accessed December 3, 2025, https://www.nationalww2museum.org/war/topics/pearl-harbor-december-7-1941.
For more information
Home of Heroes, “Home of Heroes – Medal of Honor & Military History,” Home of Heroes, last modified June 27, 2024, https://homeofheroes.com/.
“The History Place – World War II in Europe Timeline: December 7, 1941 – Japanese Bomb Pearl Harbor,” http://www.historyplace.com/worldwar2/timeline/pearl.htm.
“NHHC,” https://www.history.navy.mil/. (Naval Heritage & History Command
“USS Arizona BB-39 – USSARIZONA.ORG – Official Homepage of Battleship USS Arizona (BB-39) & Pearl Harbor Memorial Website Since 1999,” https://www.ussarizona.org/.
Suggested Reading & Media
Books
Walter Lord, Day of Infamy, 60th Anniversary: The Classic Account of the Bombing of Pearl Harbor (Macmillan, 2001).
Gordon W. Prange, At Dawn We Slept: The Untold Story of Pearl Harbor; Revised Edition (Penguin Books, 1991).
John Toland, Infamy: Pearl Harbor and Its Aftermath (Anchor, 1992).
John Toland, The Rising Sun: The Decline and Fall of the Japanese Empire, 1936-1945 (Modern Library, 2003).
Films
The History Channel Presents: Pearl Harbor, DVD (Lionsgate, 2001).
National Geographic – Pearl Harbor: Legacy of Attack, DVD (National Geographic, 2001).
Dec. 7th, 1941: Pearl Harbor Old Historic Films USS Arizona Before and After. DVD. Campbell Films, 1941. This has 5 separate films in the collection. One is from Japan telling its citizens of the great victory. Another is a War Department film about the attack. There is an episode from Victory At Sea included, newsreels, and a film about USS Arizona. A must have for the serious enthusiast!
Attack on Pearl Harbor – A Day of Infamy, DVD (Timeless Media, n.d.).
Tora! Tora! Tora! DVD. Williams-Fleischer Productions, Toei Company, 2006. This 1970 movie covers it from both the Japanese and American perspectives and is historically accurate. This provides an even handed look at both sides without a lot of drama (which was criticized) but the recreation of the attack is considered on the best done. Later movies rely on many of the action scenes from this movie. It takes the documentaries and brings them alive with a real cast and sees how this attack was planned, staged, and executed.
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