During the war of Resistance against Japanese Aggression (1937-1945), a number of international organizations and pro-Chinese personnel paid close attention to the Chinese people's resistance against Japanese aggression. From May to July, 1938, a delegation of the International Union of Students (IUS) visited Wuhan, Chongqing, Xi'an and Yan'an. The picture shows a photo of Mao Zedong and members of the delegation. [Photo/ Exhibition Road to Rejuvenation at the National Museum of China]

In June 1941, the 1st American Volunteer Group (AVG) of the Chinese Air Force, also known as Flying Tigers, came to China to participate in the war against Japan. The picture shows the Flying Tigers ready to fight the enemy. [Photo/ Exhibition Road to Rejuvenation at the National Museum of China]