Pearl Harbor Attack Plains

The Pearl Harbor attack, which occurred on December 7, 1941, was a pivotal event in world history, drawing the United States into World War II. The attack, carried out by the Imperial Japanese Navy, targeted the United States naval base at Pearl Harbor, Hawaii, catching the American military by surprise. The strategic location of Pearl Harbor, situated on the southern coast of the island of Oahu, made it an ideal location for the U.S. Pacific Fleet. However, this same location also made it vulnerable to attack, as demonstrated by the Japanese on that fateful day.
Pearl Harbor Before the Attack

Prior to the attack, Pearl Harbor was a bustling naval base, home to the U.S. Pacific Fleet. The base was surrounded by scenic landscapes, including the Waianae Mountains to the west and the Koolau Mountains to the east. The harbor itself was a tranquil and picturesque setting, with the USS Arizona, USS Oklahoma, and other battleships anchored in the calm waters. However, beneath the surface of this peaceful scene, tensions were rising between the United States and Japan. The U.S. had imposed economic sanctions on Japan, including an oil embargo, in an attempt to curb its aggressive expansion in Asia. Japan, in turn, saw the U.S. as a significant threat to its interests and began to plan a surprise attack on the U.S. naval base at Pearl Harbor.
Japanese Planning and Preparation
The Japanese plan, code-named “Operation AI,” was meticulously prepared and involved a surprise air attack on the U.S. naval base at Pearl Harbor. The Japanese assembled a fleet of six aircraft carriers, which sailed to a point approximately 230 miles northwest of Hawaii. From this location, the Japanese launched two waves of aircraft, consisting of bombers, fighters, and torpedo planes, which flew towards Pearl Harbor. The Japanese attack plan was designed to exploit the weaknesses of the U.S. military, including the lack of preparedness and the concentration of the U.S. Pacific Fleet in one location.
Japanese Aircraft | Number | Type |
---|---|---|
Bombers | 144 | Aichi D3A |
Fighters | 104 | Mitsubishi A6M |
Torpedo Planes | 40 | Nakajima B5N |

Key Points
- The Pearl Harbor attack was a surprise air attack carried out by the Imperial Japanese Navy on December 7, 1941.
- The attack targeted the U.S. naval base at Pearl Harbor, Hawaii, and resulted in significant damage and loss of life.
- The Japanese plan, code-named "Operation AI," involved the use of six aircraft carriers and two waves of aircraft.
- The attack caught the U.S. military by surprise, due in part to the lack of preparedness and the concentration of the U.S. Pacific Fleet in one location.
- The attack drew the United States into World War II and had a profound impact on the course of the war.
The Attack and Its Aftermath

The attack on Pearl Harbor began at 7:55 a.m. Hawaiian Time, when the first wave of Japanese aircraft arrived over the harbor. The U.S. military was caught off guard, and the attack resulted in significant damage and loss of life. The USS Arizona and USS Oklahoma were among the battleships sunk during the attack, with over 1,000 lives lost on each ship. The attack also damaged or destroyed numerous other ships, aircraft, and facilities, resulting in a total of over 2,400 deaths and 1,200 injuries.
U.S. Response and Entry into World War II
The attack on Pearl Harbor drew the United States into World War II, as President Franklin D. Roosevelt signed a declaration of war against Japan on December 8, 1941. Germany and Italy, allied with Japan, subsequently declared war on the United States, drawing the country into the European theater of the war. The U.S. entry into World War II marked a significant turning point in the conflict, as the country’s industrial and military might helped to shift the balance of power in favor of the Allies.
U.S. Ships Sunk or Damaged | Number |
---|---|
Battleships | 8 |
Aircraft Carriers | 3 |
Cruisers | 3 |
Destruction of Aircraft | 188 |
Legacy of the Pearl Harbor Attack
The Pearl Harbor attack had a profound impact on the course of World War II and the world at large. The attack resulted in a significant increase in U.S. military spending and mobilization, as the country prepared for a long and bloody conflict. The attack also led to a shift in U.S. foreign policy, as the country became more isolationist and less willing to engage in international conflicts. Today, the Pearl Harbor attack is remembered as a pivotal moment in world history, and the site of the attack is a national historic landmark and memorial to the lives lost on that day.
What was the significance of the Pearl Harbor attack?
+The Pearl Harbor attack was a pivotal event in world history, drawing the United States into World War II and resulting in a significant shift in the balance of power in favor of the Allies.
How many lives were lost during the Pearl Harbor attack?
+A total of 2,403 lives were lost during the Pearl Harbor attack, including 1,178 on the USS Arizona and 415 on the USS Oklahoma.
What was the U.S. response to the Pearl Harbor attack?
+The U.S. response to the Pearl Harbor attack was a declaration of war against Japan, signed by President Franklin D. Roosevelt on December 8, 1941. The U.S. subsequently declared war on Germany and Italy, drawing the country into the European theater of the war.