Core Viewpoint - The article highlights the significant contributions of Hong Kong and Macau to China's anti-Japanese war efforts during the 1930s and 1940s, emphasizing the roles of various organizations and individuals in supporting the national cause [1][11]. Group 1: Contributions from Hong Kong - Hong Kong served as a crucial logistics hub for anti-Japanese materials, facilitating the transport of cash, medical supplies, and other essential goods to the mainland [3]. - Various social organizations were established in Hong Kong to support the war effort, engaging in activities such as street speeches, fundraising events, and providing aid to refugees [5]. - The East River Column, a guerrilla force, was formed in Hong Kong to conduct armed resistance against Japanese forces, showcasing the local population's commitment to the anti-Japanese cause [6][8]. Group 2: Contributions from Macau - The Chinese Communist Party actively worked to establish and expand its organization in Macau, which became a central force in the local anti-Japanese movement [11][12]. - By October 1938, the number of Communist Party members in Macau had reached 50, organized into various branches, which strengthened the local resistance efforts [12].