十五年戦争
じゅうごねんせんそう
Asia-Pacific War (starting with the Manchurian Incident in 1931 and ending with the Japanese surrender in 1945)
百年戦争 is read as ひゃくねんせんそう (hyakunensensou) and means Hundred Years War (1337-1453).
ひゃくねんせんそう
hyakunensensou
じゅうごねんせんそう
Asia-Pacific War (starting with the Manchurian Incident in 1931 and ending with the Japanese surrender in 1945)