On this day, 432 years ago, February 19, 1593 (January 19, 1593, the lunar calendar), Li Rusong aided Korea to resist the Japanese invaders and recovered Pyongyang. In 1592, Japan's powerful minister Toyotomi Hideyoshi launched the Korean War of aggression and attempted to embezzle Korea. Korea sent envoys to ask the Ming Dynasty for help. The Ming Dynasty accepted North Korea's request and sent Li Rusong as the commander of the Eastern Expedition at the end of 1592. He led more than 70,000 Ming troops to cross eastward to join the Korean military and civilians and cooperate in fighting. On February 19, 1593 (the 19th day of the first month of the 21st year of the Ming Dynasty), after careful deployment, the Ming army launched a powerful offensive against the enemy. Li Rusong personally led a death squad to charge the elite Japanese troops stationed in Pyongyang. The battle was very fierce. The crossbows were fired at the same time, and the smoke and flames blocked the sky. The soldiers of the Chinese and Korean countries bravely took the lead. The fierce battle reached noon, and the Japanese army held their heads and fled, and the Chinese and North Korean soldiers returned home. In the battle in Pyongyang, more than 10,000 enemy troops were wiped out and countless prisoners were captured, making the Japanese army terrified.