Dr. Douglas Lantry, curator and historian of the National Museum of the U.S. Air Force, introduces the story about the Hump in the World War II Gallery of the National Museum of the U.S. Air Force in Dayton, Ohio, the United States, on July 24, 2019. The Hump, or the "death route" over the Himalayan mountains, was operated jointly by China and the United States from 1942 to 1945 to transport military supplies from India to Southwest China. The National Museum of the U.S. Air Force displays more than 360 aircrafts and thousands of historical items that bring history to life. In its World War II Gallery, many exhibits reveal a memorable part of China-U.S. cooperation when the two countries joined hands in fighting fascism and safeguarding world peace. (Xinhua/Zhang Fengguo)