2 sentences

1. 将军指挥骑兵发动了进攻。

   jiāng​jūn zhǐ​huī qí​bīng fā​dòng le jìn​gōng.

   The general commanded the cavalry to launch an attack.

   Source: Dong Chinese Dictionary

2. 大军以精锐骑兵为锋，迅速突破了敌人的防线。

   dà​jūn yǐ jīng​ruì qí​bīng wéi fēng, xùn​sù tū​pò le dí​rén de fáng​xiàn.

   The army used elite cavalry as the spearhead and quickly broke through the enemy's defense line.

   Source: Dong Chinese Dictionary