The eight-year anti-Japanese war refers to the beginning of the Lugouqiao incident, and the unconditional surrender of the Japanese emperor was announced on August 15, 1945.
The eight-year Anti-Japanese War meant that from the full outbreak of the Lugou Bridge Incident, the Japanese Emperor declared the unconditional surrender to the end of August 15, 1945.
Eight years of Anti Japanese War refers to the period from the outbreak of the Lugouqiao Incident to the end of the unconditional surrender announced by the Japanese emperor on August 15, 1945.