Lingaku- invincible army
Generated: This phrase refers to a military force that is undefeated or without equal in strength and capabilities. It is often used to describe an army that is highly effective and feared by its opponents.
zhè这Zhī支jūn duì军队bèi被chēng wéi称为“tiě jūn铁军”，yīn wèi因为tā men他们zài在zhàn dòu战斗Zhōng中cóng wèi从未shī bài失败。
This army is called the "invincible army" because they have never been defeated in battle.