Heck, I thought it was the USS Panay, Dec 12, 1937.
See “The Rape of Nanking.”
While there is some debate, few historians regard events in China between 1937 and 1939 as part of the Second World War. Rather they were part of the Second Sino-Japanese War. As SJWII wound up as part of WWII, certainly a case can be made for connecting them, but the balance of historical consensus views them as separate wars at that time.