Core Viewpoint - The article highlights the significant contributions of overseas Chinese, particularly through the South Seas Overseas Chinese Relief Association, in supporting China's war efforts during the Second Sino-Japanese War, emphasizing the leadership of Chen Jiageng in mobilizing resources and personnel for the cause [1][2][4][8]. Group 1: Organization and Mobilization - Following the September 18 Incident, many overseas Chinese organized relief groups and returned to China to support the war effort, providing crucial assistance [1]. - The South Seas Overseas Chinese Relief Association was established in October 1938, with Chen Jiageng calling for overseas Chinese to return and serve in various capacities, particularly in transportation and logistics [2][8]. - A recruitment notice led to a surge of interest among young overseas Chinese, despite strict conditions and low pay, demonstrating their patriotic commitment [2]. Group 2: Contributions and Achievements - From 1939 to 1942, over 3,200 overseas Chinese formed the "South Seas Overseas Chinese Mechanic Service Corps," transporting more than 450,000 tons of military supplies, averaging over 300 tons daily [4][10]. - The journey along the treacherous Burma Road involved significant dangers, with over 1,000 mechanics sacrificing their lives during these operations [4][10]. - The financial and material support from overseas Chinese became a vital pillar for the Nationalist government, especially during a time of limited international aid [8]. Group 3: Leadership and Legacy - Chen Jiageng emerged as a prominent leader among overseas Chinese, uniting various groups to support the war effort and emphasizing the importance of patriotism and unity [8][9]. - His visit to Yan'an in 1940 profoundly changed his perspective on China's future, leading him to advocate for the Communist Party's role in the country's hope [13][14].