Chinese-, Korean-, and Filipino-Americans living in California were concerned about the global conflict even before Pearl Harbor. For them war had already become a reality with Japan's expansion in Asia. Since the start of the Sino-Japanese War in 1937, the California Chinese community had been active in raising funds for war torn China. During the war, many Asian-Americans served in the military, including 20,000 Chinese-Americans. In 1942, the First and Second Filipino Infantry Regiments were created in California. One fifth of the Koreans from Los Angeles served in the California Korean Reserve of the California State Militia, while 10,000 Korean-Americans raised $239,000 in war bonds. Anti-Asian sentiment in the US began to lessen in the face of media coverage of the brutal Japanese occupation of China, Korea, and the Philippines. In 1943, Soong Mayling, wife of Chinese leader Chiang Kai-Shek, visited the US to rally support for China. In the same year, the US government began to remove restrictions on Chinese immigration. Despite this, attacks persisted on Asian-Americans, as many were wrongly assumed to be Japanese.