When did Pearl Harbor occur?

December 7th, 1941. This attack came as a surprise to US forces and prompted their entrance into World War II. The attack was carried out by the Japanese forces. When the Japanese were planning the attack, they referred to it as Operation AI, Operation Z, and Hawaii Operation.

The attack happened at eight in the morning. In total, the attack had a major impact and even resulted in over two thousand deaths. Along with that, many of the ships and aircraft were hit and destroyed. Later on, this attack was deemed a war crime.