The Battle of Tientsin, or the Relief of Tientsin, occurred on 13–14 July 1900, during the Boxer Rebellion in Northern China. A multinational military force, representing the Eight-Nation Alliance, rescued a besieged population of foreign nationals in the city of Tientsin (Pinyin: Tianjin) by defeating the Chinese Imperial army and Boxers. The capture of Tientsin gave the Eight-Nation Alliance a base to launch a rescue mission for the foreign nationals besieged in the Legation Quarter of Beijing and to capture Beijing in the Battle of Peking (1900).