The English translation of Japanese is the Sino-Japanese War.
War of Resistance against Japanese Aggression said in English: The Second Sino-Japanese War (the Second Sino-Japanese War) is different from the First Sino-Japanese War (1894- 1895 Sino-Japanese War, which Japan called the Sino-Japanese War).
As for War of Resistance against Japanese Aggression, it was directly translated by China people themselves, but foreigners will understand it because of the expansion of Sino-foreign exchanges.