Lieutenant General Sasaki Tōichi (佐々木 到一, 27 January 1886 – 30 May 1955) was a Japanese soldier who served in the Imperial Japanese Army. He was known as an expert on Chinese affairs, had close relationships with leading figures in the Kuomintang (KMT)'s National Revolutionary Army during the 1920s, and expressed sympathy for their cause. A violent encounter with KMT forces during the 1928 Jinan incident, however, led him to abandon his pro-KMT stance, and adopt a pessimistic attitude toward China. He later served as chief military advisor to the Japanese puppet state Manchukuo, and during the Second Sino-Japanese War, he was involved in perpetrating the Nanjing massacre. In the last days of the Second World War, Sasaki was captured by Soviet troops and handed over to the Chinese communist