Complex sentence: After the outbreak of the "China Incident", Mr. Sato was seconded to the Japanese Army with the honorary rank of Lieutenant-General and that he was responsible for the apprehension of many British and American foreign nationals at Nanking and Hankow.
Split into simpler sentences: After the outbreak of the "China Incident", Sato was seconded to the Japanese Army with the honorary rank of Lieutenant-General. He was responsible for the apprehension of many British and American foreign nationals at Nanking and Hankow.