Towards the end of 1938, Wu Hua You had health problems and was deployed to the organization department of the New Fourth Army Command. He requested to be sent to Yanan for training, but Chen Yun decided that the better arrangement would be to deploy him to join the battle in Bei Jiang because he was a Cantonese. His mission was to penetrate into the ninth squad of the Kuomintang Relief Corps and to educate the young people with the anti-Japanese ideology. He had fought the Japanese armies in Niubeiji, Conghua. When the Kuomintang crushed the party’s centre in Northern Guangdong in 1941, Wu Hua You fled to Kowloon and lived in Nga Tsin Wai, where he formed the self-defense squad jointly with Ng Wai Chi and Liu Fat. The squad was not organized under the communist banner. More than 20 young villagers, including Ng Wah Kuen (Wu Hua You’s younger brother), were motivated to join the anti-Japanese battles. As a result, Ng Wah Kuen joined the East River Column. Liu Fat, a Nga Tsin Wai villager, became a communist party member and worked for the provincial survey department. After Hong Kong was occupied, the Japanese armies entered the village and arrested the communist party members. Wu Guo Qiang left Hong Kong for the Mainland and contacted Zeng Sheng the East River Column Commander. Later on, Guo Qiang’s grandmother came with Guo Qiang’s elder sisters to join Wu Hua You.