Meaning of 官軍 in Japanese

Definition of 官軍

かんぐん(kangun) 【官軍】

(n) government forces; loyalist army
官軍に入城を許すとはどういう了見だ。
What do you think you're doing letting the loyalists into the castle?

かてばかんぐんまければぞくぐん(katebakangunmakerebazokugun) 【勝てば官軍負ければ賊軍】

勝てば官軍かんぐん負ければ賊軍ぞくぐん。

If you win, you are in the right, but if you lose, you are in the wrong.

勝てば官軍かんぐん。

All is fair in love and war.