noun
war-weariness; feeling of being tired of war
Refers to a collective mood or sentiment of exhaustion and disillusionment with war, often in a societal or historical context.
長期化する戦争で、国民の間に厭戦気分が広がった。
As the war dragged on, a feeling of war-weariness spread among the people.
Compound of 厭戦 (war-weariness) and 気分 (feeling, mood). The exact historical derivation is uncertain, but the term is used in modern Japanese to describe anti-war sentiment or exhaustion from prolonged conflict.