noun
military history; war history
Refers to the historical record or study of wars and military campaigns. Often used in titles of books or documentaries.
彼は第二次世界大戦の戦史を研究している。
He is researching the military history of World War II.
この本は古代ローマの戦史を詳しく解説している。
This book explains the military history of ancient Rome in detail.
Compound of 戦 (war, battle) and 史 (history). The reading is on'yomi, as expected for a Sino-Japanese compound.