noun
regular army
Refers to a nation's official, standing military force, as opposed to irregulars, militia, or guerrilla forces.
その国は正規軍と民兵の区別が曖昧だ。
In that country, the distinction between the regular army and militias is vague.
General term for 'armed forces' or 'military'; 正規軍 emphasizes the official, standing nature.
Compound of 正規 (regular, formal) and 軍 (army, military).