advocacy of war; pro-war stance
Refers to the position or policy of supporting war, often used in political or historical discussions.
He advocated for war.
The pro-war faction and the peace faction clashed.
He advocated for war in the parliament.
反戦 is opposition to war, the direct opposite stance of 主戦, which is support for war.
Compound of 主 (main, primary) and 戦 (war, battle), literally 'main war' or 'primary battle', used to denote a pro-war stance.