抗战时期，海内外侨胞勠力同心、共御外侮——重洋难阻报国心

Core Viewpoint - The article highlights the patriotic contributions of overseas Chinese, particularly from the Jiangmen region, during the Anti-Japanese War, showcasing their collective efforts and sacrifices in support of their homeland [8][17][22]. Group 1: Contributions of Overseas Chinese - Among the 2,000 members of the Flying Tigers, 95% were American-born Chinese, primarily from Jiangmen, with notable figures like Yu Xinxian leading efforts to enlist others [8][9]. - Jiangmen's overseas Chinese contributed significantly to the war effort, with donations accounting for a substantial portion of the total funds raised for the war [8][17]. - Zheng Chaojiong, a Chinese expatriate in Southeast Asia, raised 180,000 yuan through selling sunflower seeds, which could purchase 400,000 jin of rice, to support the war [17][18]. Group 2: Heroic Stories - The "Seven Martyrs of Nanlou" bravely defended their hometown against Japanese forces, refusing to surrender despite overwhelming odds, ultimately sacrificing their lives [13][14]. - Yu Xinxian mobilized around 1,600 Chinese Americans to join the Flying Tigers, emphasizing the importance of their technical skills in supporting military operations in China [9][10]. - The article recounts the story of Xie Chuang, who, despite challenges, organized anti-Japanese activities upon returning to his hometown, demonstrating individual commitment to the national cause [22][23]. Group 3: Legacy and Remembrance - Descendants of these heroes, such as Yu Yanshi and Zheng Weixiong, express the importance of preserving their ancestors' legacies and instilling a sense of patriotism in future generations [11][19][24]. - The stories of these overseas Chinese serve as a reminder of their sacrifices and the enduring spirit of patriotism that continues to inspire their descendants [12][20][25].