In mid-1945, a team of US soldiers liberated a Japanese internment camp in East China, freeing more than 2,000 foreign civilians. A young Chinese scholar was also a member of the rescue party, and 70 years later, he's still feted by those he helped to save. He Na reports.

Editor's Note: This is the sixth in a series of special reports about the experiences and influence of foreigners who either lived or served in China between 1937 and 1945.

Wang Chenghan, also known as Eddie Wang, is not man who stands out in a crowd. Short of stature, gray-haired and with wrinkles on his face, the 90-year-old is virtually indistinguishable from the elderly people who can be seen dancing in squares across China as they take their daily exercise.