The Siege of Pyongyang was part of the Japanese invasions of Korea. Konishi Yukinaga, a Japanese daimyo, captured Pyongyang and garrisoned his force in the winter of 1592. A small detachment of 3,000 Ming soldiers arrived from one of the Manchurian to investigate the scale of the Japanese invasion after King Seonjo pleaded for aid from the Ming court. The Chinese force was a renown mounted unit with much experience and success fighting the Jurchens.