USA HISTORY

Detailed explanation-1: -On December 7, 1941, Japan staged a surprise attack on Pearl Harbor, decimating the US Pacific Fleet. When Germany and Italy declared war on the United States days later, America found itself in a global war. Top Image: Propaganda poster developed by the Office of War Information following the attack on Pearl Harbor.

Detailed explanation-2: -On December 7, 1941, following the Japanese bombing of Pearl Harbor, the United States declared war on Japan. Three days later, after Germany and Italy declared war on it, the United States became fully engaged in the Second World War.

Detailed explanation-3: -President Roosevelt moved the US Pacific Fleet from California to Pearl Harbor in 1939. This move was a threat to Japan, who wanted to expand in the Pacific. Military leaders and politicians saw a war between the U.S. and Japan as inevitable, with the solution being to attack first. Japan did just that.

Detailed explanation-4: -Pearl Harbor attack, (December 7, 1941), surprise aerial attack on the U.S. naval base at Pearl Harbor on Oahu Island, Hawaii, by the Japanese that precipitated the entry of the United States into World War II. The strike climaxed a decade of worsening relations between the United States and Japan.

Detailed explanation-5: -The December 7, 1941 attack on Pearl Harbour was among the most significant moments of the War-it signalled the official entry of the US into the hostilities, which eventually led to the dropping of nuclear bombs on the Japanese cities of Hiroshima and Nagasaki in 1945.