An official website of the United States Government 
Here's how you know

Official websites use .gov

.gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

‘A Date Which Will Live in Infamy

On Dec. 7, 1941, Japan launched a surprise attack on the U.S. Pacific Fleet at Pearl Harbor, Hawaii. The assault killed or wounded more than 3,500 American troops and civilians; severely damaged the fleet; and shocked the nation. The next day, President Franklin D. Roosevelt addressed Congress and the nation, declaring the “American people in their righteous might will win through to absolute victory.” The U.S. entered World War II within hours.

Read Transcript

Why Pearl Harbor?

The attack on Pearl Harbor capped years of deteriorating relations between Japan and the United States. In response to Japanese conquests of parts of China and the entirety of French Indochina, as well as Imperial Japan joining the Axis powers alongside Nazi Germany and fascist Italy, the U.S. halted the shipment of oil and other raw materials to the resource-deficient island nation. In a gamble to sustain its growing empire, Japan crafted a plan to seize oil-rich territories in Southeast Asia.

The U.S. Pacific Fleet, which moved in 1940 from California to Pearl Harbor, west of Honolulu on the island of Oahu, posed a potential threat to this objective. Japanese leaders decided to launch a surprise strike on the fleet to immobilize it so that it could not impede their military’s larger offensive.

Oahu was also home to multiple U.S. military airfields, including Navy air stations at Ford Island and Kaneohe Bay, a Marine Corps airfield at Ewa, and Army Air Corps fields at Bellows, Wheeler and Hickam. To prevent counterattacks from U.S. military aircraft, the Japanese would strike aircraft at these sites as well.

The Attack

The Japanese striking force – comprising 353 planes aboard six aircraft carriers, accompanied by 24 supporting vessels – launched the attack in two waves from a point about 200 miles north of Oahu. The entire assault lasted under two hours.

The first wave of more than 180 Japanese aircraft – including torpedo bombers, dive bombers, horizontal bombers and fighters – achieved complete surprise when they struck just before 8 a.m. on a sunny Sunday morning.

Planes bombed and strafed Wheeler, Hickam, Bellows and Ewa airfields and the naval air bases at Ford Island and Kaneohe Bay as other elements of the striking force assaulted the ships moored at Pearl Harbor.

After a brief lull, the second wave of 170 aircraft – dive and high-altitude bombers – struck, focused mostly on continuing the destruction inside the harbor.

Casualties

Just over 2,400 Americans died in the attack – 2,008 Navy personnel, 109 Marines, 218 Army personnel (including the Army Air Forces, the Air Force’s predecessor), and 68 civilians. Another 1,178 were wounded.

Nearly half of the deaths came from the battleship USS Arizona, which sank after suffering a massive explosion from a bomb that penetrated the vessel’s deck and ignited its forward ammunition magazine. It was one of three ships destroyed in the attack, along with the battleship USS Oklahoma, where 429 men died, and the USS Utah, with a death toll of 58.

Numerous other ships, including six additional battleships, were damaged or sunk. Some 188 military aircraft were destroyed; 159 were damaged.

While devastating, the attack was not a total success. Repair crews were able to return 18 ships to service; none of Pearl Harbor’s aircraft carriers were present during the attack; and Americans, previously divided over the question of U.S. involvement in the war, rallied together to commit to victory.

5 Things You May Not Know About Dec. 7

Hundreds of Marines salute during a Marine Corps pageant.

Fires burn at Cavite Navy Yard in the Philippines following a Japanese air raid, Dec. 10, 1941.

National Archives photo

Though Dec. 7, 1941, will always be known as the date of the Pearl Harbor attack, Oahu wasn’t Japan’s only target on the “date which will live in infamy.”

Japanese forces accompanied the Pearl Harbor assault – which fell on Dec. 8 in Japan – with well-coordinated surprise attacks on U.S. and British bases throughout the Pacific, including in the Philippines, Guam, Wake Island, Malaya (now part of Malaysia) and Hong Kong. Japan formally declared war on both the United States and the British Empire.

While Japan’s aim in striking Oahu was to immobilize the U.S. Pacific Fleet to prevent it from interfering with its larger plans in the Pacific, it intended other attacks to serve as preludes to full-scale invasion and occupation.

The campaign progressed rapidly, though U.S.-Filipino units were able to mount a resistance for five months in the Philippines. That defense delayed the Japanese timetable for the conquest of south Asia and became a symbol of hope for the United States in the early, bleak days of the war.

Principal sources: U.S. Army Center of Military History, United States Army in World War II: The Fall of the Philippines
U.S. Army Center of Military History, The U.S. Army Campaigns of World War II: Philippine Islands

African-American and white soldiers during World War II​.

The aircraft carriers USS Saratoga and Lexington travel near Diamond Head crater in waters off Honolulu, February 1932.

Naval History and Heritage Command photo

Among the most strategically important targets for the Japanese were the three U.S. Pacific Fleet aircraft carriers stationed at Pearl Harbor – the USS Enterprise, the USS Lexington and the USS Saratoga – but in a stroke of luck, none were in port on Dec. 7.

The Enterprise was en route back to Pearl Harbor on Dec. 7, after Navy Adm. Husband E. Kimmel, the fleet’s commander in chief, sent the ship to Wake Island on Nov. 28 to deliver Marine Corps fighter planes.

Kimmel had dispatched the Lexington with a task force to deliver scout bombers to Midway Island just two days before the Pearl Harbor attack. And the Saratoga was in San Diego after undergoing a maintenance overhaul.

Though most of the fleet was in Pearl Harbor for the attack, the absence of the carriers was a boon to American forces, and carriers would play a pivotal role in turning the tide in the Pacific in the Allies’ favor. The Enterprise became the most decorated U.S. warship of World War II, serving in almost every naval battle against Imperial Japan.

Principal sources: Naval History and Heritage Command, Pearl Harbor Attack, 7 December 1941: Carrier Locations

1952 Women service members.

The USS Ward's Number 3 gun and its crew, who were cited for firing the first shot the day of Japan's raid on Hawaii.

Naval History and Heritage Command photo

Despite the surprise of the Pearl Harbor attack, it was the United States, not Japan, that fired the first shot in the waters off Oahu on Dec. 7.

The destroyer USS Ward, patrolling in a restricted zone off the entrance to Pearl Harbor, shot and sank a Japanese mini submarine more than an hour before Japanese aircraft launched their attack.

Another ship, the minesweeper USS Condor, reported spotting a submarine periscope at 3:42 a.m. Nearly three hours later, a patrol aircraft also sighted a periscope and marked the spot with a smoke pot. The Ward responded, firing at the sub and dropping depth charges.

It was one of five top-secret Japanese mini subs specifically built for the Pearl Harbor raid that were attempting to enter the harbor to fire torpedoes once the attack began, though the mission ultimately failed.

The Ward radioed a report of the incident, and Pacific Fleet commander Adm. Husband E. Kimmel canceled his regular golf game and was returning to headquarters when the air attack began.

Principal sources: Naval History and Heritage Command, “The Story of USS Ward and Navy Readiness as the Sun Rose on the Day of Infamy

Marine Corps Capt. Marina Hierl speaks with a Malaysian service member

The mini submarine commanded by Japanese Ensign Kazuo Sakamaki during salvage by U.S. forces, December 1941.

Naval History and Heritage Command photo

The commander of one of the five mini submarines Japan built for the attack on Pearl Harbor became America’s first prisoner of the war.

Ensign Kazuo Sakamaki, 23, had trouble with the gyrocompass of the two-person ship even before it launched from its “mother” sub about 10 miles off Pearl Harbor at around 3:30 a.m. Dec. 7.

He and his shipmate struggled to control the roughly 80-foot vessel, repeatedly struck coral reefs, were fired on by a destroyer, temporarily lost consciousness when the battered sub’s batteries released smoke and fumes, and eventually became stuck on a reef near Bellows Field.

His shipmate died in the ordeal, but Sakamaki made it to shore and fell unconscious. A Hawaii National Guard soldier on patrol at Bellows in the morning on Dec. 8 apprehended him; he was questioned and sent to a prisoner of war facility.

After the war, Sakamaki wrote a memoir, published in the U.S. as “I Attacked Pearl Harbor: The True Story of America's POW #1,” though he reportedly did not speak much about his wartime experiences. He worked for Toyota, rising to become president of a Brazilian subsidiary, and died at age 81.

Principal sources: Pacific Air Forces Office of History, 7 December 1941: The Air Force Story
U.S. Army Intelligence Center of Excellence, Japanese Mini Submarine Officer Captured Near Pearl Harbor

Marine Corps Capt. Marina Hierl speaks with a Malaysian service member

John Delmar Anderson, 97, points to the name of his twin brother, Delbert Jake Anderson, at the USS Arizona Memorial, Dec. 7, 2014. Both brothers served on the ship; only John survived.

Navy photo

The crew of the USS Arizona on Dec. 7, 1941, included 38 sets of brothers and one father and son.

Three of the sets included three brothers each, making 79 brothers total assigned to the battleship. Sixty-three of them died in the attack, along with the father and son, Thomas Augusta Free and William Thomas Free.

Only one family had both brothers survive: Kenneth Warriner was off the ship, training in San Diego; his brother, Russell, was badly burned but survived.

Such losses prompted the Navy to issue a bulletin early in the war advising against family members serving together on the same ship, but no formal prohibition followed.

Perhaps the best-known sets of brothers to die in the war – the five Sullivan brothers, who were killed in action aboard the USS Juneau in 1942 in the biggest blow to any one family in U.S. wartime history – enlisted or reenlisted to avenge the loss of their friend Seaman 1st Class William V. Ball.

Ball was killed while serving on the USS Arizona with his own brother, Fireman 1st Class Masten A. Ball, who survived.

Principal sources: National Park Service, Brothers Assigned to the USS Arizona
Naval History and Heritage Command, The Sullivan Brothers

Heroes of Pearl Harbor


Numerous Americans distinguished themselves with acts of courage and heroism on Dec. 7, 1941. Here are the stories of some of them.

Navy Mess Attendant 2nd Class

Doris "Dorie"Miller

He was a mess attendant, but that didn’t stop Miller from helping the injured and manning a machine gun when the USS West Virgina was hit.

Watch Video

Army Air Corps 2nd Lts.

Ken Taylor and George Welch

Through quick thinking and bold action, these two pilots managed to get airborne and engage the enemy during the Pearl Harbor attack.

Read Story

Military Pioneers

Nurses of Oahu

The military nurses who tended to casualties of the Pearl Harbor attack performed capably and courageously when their services were needed most.

Read Story

Navy Seaman 1st Class

James Richard Ward

With moments to decide whether to save himself or help save others aboard the sinking USS Oklahoma, he chose the valiant option.

Read Story

Through the Years


The Pearl Harbor National Memorial is one of Hawaii’s most-visited destinations, drawing well over 1 million service members, veterans and civilians each year to pay tribute to those who fought and died in the attack.

... loading ...

Sailors Keep Pearl
Harbor's Legacy Alive

Read Story