《资治通鉴·晋纪·晋纪二十九》
姚苌说： 苻登本来调配部队一向迟缓，不了解敌人的虚实。
苌曰： 登用兵迟缓，不识虚实。
Yao Chang said: “Fu Deng was originally slow to deploy troops and did not know the enemy's reality.”
<s>[INST] Kindly elucidate the central themes in this passage in English: 苌曰： 登用兵迟缓，不识虚实。 [/INST] Yao Chang said: “Fu Deng was originally slow to deploy troops and did not know the enemy's reality.”</s>
Kindly elucidate the central themes in this passage in English: 苌曰： 登用兵迟缓，不识虚实。
user
Yao Chang said: “Fu Deng was originally slow to deploy troops and did not know the enemy's reality.”
assistant