Pearl Harbor in the context of "United States declaration of war on Japan"

The attack on Pearl Harbor was a surprise military strike by the Empire of Japan on the United States Pacific Fleet at its naval base at Pearl Harbor on Oahu, Hawaii, on December 7, 1941. At the time, the U.S. was a neutral country in World War II. The air raid on Pearl Harbor, which was launched from aircraft carriers, resulted in the U.S. declaring war on Japan the next day. The Japanese military leadership referred to the attack as the Hawaii Operation and Operation AI, and as Operation Z during its planning.

The attack on Pearl Harbor was preceded by months of negotiations between the U.S. and Japan over the future of the Pacific. Japanese demands included that the U.S. end its sanctions against Japan, cease aiding China in the Second Sino-Japanese War, and allow Japan to access the resources of the Dutch East Indies. Japan sent out its naval attack group on November 26, 1941, just prior to receiving the Hull note, which stated the U.S. desire that Japan withdraw from China and French Indochina. Isoroku Yamamoto, commander of the Japanese Combined Fleet, planned the attack as a pre-emptive strike on the Pacific Fleet, based at Pearl Harbor since 1940 in order to prevent it from interfering with Japan's planned actions in Southeast Asia. Yamamoto hoped that the strike would enable Japan to make quick territorial gains and negotiate peace. In addition to Pearl Harbor, over seven hours Japan launched coordinated attacks on the U.S.-held Philippines, Guam, and Wake Island; and on the British Empire in Malaya, Singapore, and Hong Kong.

The Junior Reserve Officers' Training Corps (JROTC) is a federal program sponsored by the United States Armed Forces in high schools and also in some middle schools across the United States and at US military bases across the world. The program was originally created as part of the National Defense Act of 1916 and later expanded under the 1964 ROTC Vitalization Act.

The Joint Typhoon Warning Center (JTWC) is a joint United States Navy – United States Air Force command in Pearl Harbor, Hawaii. The JTWC is responsible for the issuing of tropical cyclone warnings in the North-West Pacific Ocean, South Pacific Ocean, and Indian Ocean for all branches of the U.S. Department of Defense and other U.S. government agencies. Their warnings are intended primarily for the protection of U.S. military ships and aircraft, as well as military installations jointly operated with other countries around the world. Its U.S. Navy components are aligned with the Naval Meteorology and Oceanography Command.

Kalākaua (David Laʻamea Kamanakapuʻu Māhinulani Nālaʻiaʻehuokalani Lumialani Kalākaua; November 16, 1836 – January 20, 1891), was the last king and penultimate monarch of the Kingdom of Hawaiʻi, reigning from February 12, 1874, until his death in 1891. Succeeding Lunalilo, he was elected to the vacant throne of Hawaiʻi against Queen Emma. Kalākaua was known as the Merrie Monarch for his convivial personality – he enjoyed entertaining guests with his singing and ukulele playing. At his coronation and his birthday jubilee, the hula, which had hitherto been banned in public in the kingdom, became a celebration of Hawaiian culture.

During Kalākaua's reign, the Reciprocity Treaty of 1875 brought great prosperity to the kingdom. Its renewal continued the prosperity but allowed United States to have exclusive use of Pearl Harbor. In 1881, Kalākaua took a trip around the world to encourage the immigration of contract sugar plantation workers. He wanted Hawaiians to broaden their education beyond their nation. He instituted a government-financed program to sponsor qualified students to be sent abroad to further their education. Two of his projects, the statue of Kamehameha I and the rebuilding of ʻIolani Palace, were expensive endeavors but are popular tourist attractions today.

The Rim of the Pacific Exercise (RIMPAC) is the world's largest international maritime warfare exercise. RIMPAC is held biennially during June and July of even-numbered years from Honolulu, Hawaii, with the exception of 2020, when it was held in August. It is hosted and administered by the Indo-Pacific Command, headquartered at Pearl Harbor, in conjunction with the Marine Corps, the Coast Guard, and Hawaii National Guard forces under the control of the Governor of Hawaii.

Ford Island (Hawaiian: Poka ʻAilana) is an islet in the center of Pearl Harbor, Oahu, in the U.S. state of Hawaii. It has been known as Rabbit Island, Marín's Island, and Little Goats Island; its native Hawaiian name is Mokuʻumeʻume. The island had an area of 334 acres (135 ha) when it was surveyed in 1825, which was increased during the 1930s to 441 acres (178 ha) with fill dredged out of Pearl Harbor by the United States Navy to deepen the harbor.

The island was the site of an ancient Hawaiian fertility ritual, which was stopped by Christian missionaries during the 1830s. The island was given by Kamehameha I to Spanish deserter Francisco de Paula Marín, and later returned to the monarchy. After the island was bought at auction by James Isaac Dowsett and sold to Caroline Jackson, it became the property of Dr. Seth Porter Ford by marriage and was renamed Ford Island. After Ford's death, his son sold the island to the John Papa ʻĪʻī estate and it was converted into a sugarcane plantation.

The "Day of Infamy" speech, sometimes referred to as the Infamy speech, was a speech delivered by Franklin D. Roosevelt, the 32nd president of the United States, to a joint session of Congress on December 8, 1941. The previous day, the Empire of Japan attacked United States military bases at Pearl Harbor and the Philippines, and declared war on the United States and the British Empire. The speech is known for its famed first line, which opened with Roosevelt saying, "Yesterday, December 7, 1941—a date which will live in infamy..."

On Sunday, December 7, 1941, the United States Navy base at Pearl Harbor in the Territory of Hawaii was attacked by 353 Imperial Japanese Navy Air Service aircraft in a surprise military strike, destroying various American ships and aircraft, and killing over 2,400 civilians and military personnel. After consulting his cabinet, Roosevelt decided to deliver an address before the joint session of the Congress the next day.