The difficulty of the Chinese expeditionary army crossing the Savage Mountain was comparable to the difficulty of the Red Army's Long March, but their backgrounds and purposes were different, so it was difficult to make a simple comparison. During the Second World War, the Chinese Expeditionary Force was an army composed of Chinese soldiers and expeditionary volunteers. Its mission was to assist the British army in the battle in China. Their mission was very difficult. They had to cross the Savage Mountain in the mountains and forests and encounter various wild animals and mosquitoes. At the same time, they had to deal with the pursuit and siege of the Japanese army. This environment was very harsh for ordinary soldiers, but for the expeditionary force, they had special training and equipment that allowed them to survive and fight in this environment. In contrast, the Red Army's Long March was to avoid the enemy's pursuit and oppression. It took more than two years for the Red Army to walk all the way from Sichuan, Yunnan, and other places to northern Shaanxi. This route was very long and required passing through many harsh natural environments, including mountains, canyons, swamps, and so on. The Red Army faced many difficulties and challenges in the Long March, but they walked through the difficult road step by step with firm faith and perseverance. Therefore, although the difficulty of the Chinese expeditionary army crossing the Savage Mountain and the Red Army's Long March were both quite serious, their backgrounds and purposes were different, so it was difficult to simply compare them. In this sense, every event had a unique value and meaning.