615 years ago today, July 15, 1410 (June 14, 1410, the 1410 lunar calendar), the Battle of Grinwald broke out. On July 15, 1410, the famous Battle of Grinwald broke out. The 39,000-man Lithuania coalition forces under the command of Polish King Vladimir Jakello fought a decisive battle against the approximately 27,000 troops of the Teutonic Knights near Tanrenburg and Greenwald. The Teutonic Knights lost their elite in this battle. 8,000 knights were killed, 2,000 were captured, and most of their leaders, including the chief commander of the Knights, Von Rongjingen, were killed. The Teutonic Knights were never able to recover, and Poland gradually regained its lost territory and gained towns such as Gdansk and the Baltic Sea outlet. (Polish author Xianke Weizhi wrote the novel "Knights of the Crusaders" based on this battle.) Comment: The Teutonic Knights began to decline since then, but this organization has continued to exist to this day