The Defense of Sihang Warehouse took place from October 26 to November 1, 1937, and marked the beginning of the end of the three-month Battle of Shanghai in the opening phase of the Second Sino-Japanese War. Defenders of the warehouse held out against numerous waves of Japanese forces and covered Chinese forces retreating west during the Battle of Shanghai.
The successful defense of the warehouse provided a morale-lifting consolation to the Chinese army and people in the demoralizing aftermath of the Japanese invasion of Shanghai. The warehouse's location just across the Suzhou Creek from the foreign concessions in Shanghai meant the battle took place in full view of the western powers.
Wikipedia https://en.wikipedia.org/wiki/Defense_of_Sihang_Warehouse
Coordinates 31°14'32.185" N 121°27'59.685" E