During their long journey, the Red Army crossed towering snow-covered mountains and trekked across vast, uninhabited grasslands. Besides the Kuomintang enemy, they also had to battle unpredictable weather, swamps and hunger, pushing themselves to the limits of their endurance in some of the harshest environments on Earth. By pressing on despite the formidable obstacles in their path, the Red Army created an enduring legend of fearless sacrifice.