《百战奇略·第九卷·降战》
战后曹操对将领们说： 我收降张绣这件事，失误在于当时没有取其人质相挟制，以致造成此种被动局面。
操谓诸将曰： 吾降绣，失在不便取质，以致如此。
After the war, Cao Cao said to the generals: "My mistake in accepting Zhang Xiu's surrender was that I did not take his hostages as hostages at that time, which led to this passive situation."
<s>[INST] Kindly elucidate the central themes in this passage in English: 操谓诸将曰： 吾降绣，失在不便取质，以致如此。 [/INST] After the war, Cao Cao said to the generals: "My mistake in accepting Zhang Xiu's surrender was that I did not take his hostages as hostages at that time, which led to this passive situation."</s>
Kindly elucidate the central themes in this passage in English: 操谓诸将曰： 吾降绣，失在不便取质，以致如此。
user
After the war, Cao Cao said to the generals: "My mistake in accepting Zhang Xiu's surrender was that I did not take his hostages as hostages at that time, which led to this passive situation."
assistant