Question: What is the name of the war in which the 4th Infantry Regiment of the Imperial Japanese Army fought the Republic of China from July 7, 1937 to September 9, 1945?
Sentence (from "54th Infantry Regiment (Imperial Japanese Army)"): The regiment fought in the later stages of World War II, assigned to the Japanese Eighth Area Army at Bougainville Island in the Solomon Islands.
Relevant evidence: No