To advocate or argue for the use of military force to solve a conflict; opposite of 主和 zhǔ​hé

To be responsible for the main combat tasks or to serve as the primary fighting force in a military operation

Primary or main combat; often used as an attributive to describe primary equipment or units in a battle (e.g. 主战坦克 zhǔ​zhàn​tǎn​kè main battle tank)