A complicating factor is that a minority of people in every Asian and Pacific country invaded by Japan collaborated with the Japanese military, or even served in it, for a wide variety of reasons, such as economic hardship, coercion, or antipathy to other imperialist powers. Many Koreans served in the Imperial armed forces. The Formosan Army, which was part of the Imperial Japanese Army, was recruited from ethnic Chinese men on Formosa. The Indian National Army, under Subhas Chandra Bose, is perhaps the best-known example of a movement opposed to European imperialism, which was formed during World War II to assist the Japanese military. Prominent individual nationalists in other countries, such as the later Indonesian president, Suharto, also served with Japanese imperial forces. The Burmese nationalist leader Aung San initially sided with the Japanese, forming the Burma National Army, but turned against them in early 1945. In some cases such non-Japanese personnel were also responsible for war crimes committed by the Empire of Japan. B. V. A. Roling, the Dutch justice at the Tokyo trials, noted how "many of the commanders and guards in POW camps were Koreans the Japanese apparently did not trust them as soldiers." Korean guards, he added, were often said to be "far more cruel than the Japanese." One Korean described abject Allied POWs: "now I have seen how depraved and worthless the white man is." For political reasons, many non-Japanese personnel in the Imperial armed forces were never investigated or tried after 1945. In South Korea especially, it is alleged that such people were often able to acquire wealth by participating in exploitative activities with the Japanese military. It is further alleged in South Korea that some former collaborators have covered up "Japanese" war crimes in order to avoid their own prosecution and/or exposure.