 In 1944, Wong learned of the demise of his friend, Wah Kau Kong, who had flown 14 missions with two kills before becoming engaged in an air battle with a German fighter pilot over Blomberg, Germany.However, no further information was available.Determined to find out what happened to Kong, and out of respect for Kong's family, Wong vowed to discover details of the duel and return any of his friend's belongings to the Kong family.