《明史·列传·卷五》
北平精税部队则埋伏城外，官兵也渐渐入城，暗中勾结三卫部长及诸守军。
北平锐卒伏城外，吏士稍稍入城，阴结三卫部长及诸戍卒。
The Beijing Exquisite Tax force lay in ambush outside the city, and the officers and soldiers gradually entered the city, secretly colluding with the three衛Ministers and other garrisons.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 北平锐卒伏城外，吏士稍稍入城，阴结三卫部长及诸戍卒。 [/INST] The Beijing Exquisite Tax force lay in ambush outside the city, and the officers and soldiers gradually entered the city, secretly colluding with the three衛Ministers and other garrisons.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 北平锐卒伏城外，吏士稍稍入城，阴结三卫部长及诸戍卒。
user
The Beijing Exquisite Tax force lay in ambush outside the city, and the officers and soldiers gradually entered the city, secretly colluding with the three衛Ministers and other garrisons.
assistant