Historic Moments on Instagram: "Colorized and upscaled to 4K, this footage captures the Battle of Kursk in 1943, the largest tank battle in history and a turning point on the Eastern Front. Fought between Nazi Germany and the Soviet Union, it involved over 6,000 tanks, 4,000 aircraft, and nearly two million troops. The Soviet victory not only halted the German advance but also marked the beginning of a relentless push westward that would continue until the end of World War II."