 Complete the following phrase:  The future Muslim General Ma Biao, who led Muslim cavalry to fight against the Japanese in the Second Sino-Japanese War, fought in the Boxer Rebellion as a private in the Battle of Peking against the foreigners. Another General, Ma Yukun, who commanded a separate unit, was believed to be the son of the Muslim General Ma Rulong by the Europeans. Ma Yugun fought with some success against Japan in the First Sino-Japanese War and in the Boxer Rebellion at the Battle of Yangcun and 