《新唐书·列传·卷二十五》
请陛下当面命令它的使者，叫他回去告诉国王，如果聚众抗拒，就率领突厥军队一起讨伐。 
请面诏其使，令归语王，有如旅拒，方率突厥诛之。 
I ask your Majesty to order its envoys before him and tell him to return and inform the King that if he gathers his people to resist, we will lead the army of the Eastern Turkic Khaganate to punish him.
<s>[INST] Kindly elucidate the central themes in this passage in English: 请面诏其使，令归语王，有如旅拒，方率突厥诛之。  [/INST] I ask your Majesty to order its envoys before him and tell him to return and inform the King that if he gathers his people to resist, we will lead the army of the Eastern Turkic Khaganate to punish him.</s>
Kindly elucidate the central themes in this passage in English: 请面诏其使，令归语王，有如旅拒，方率突厥诛之。
user
I ask your Majesty to order its envoys before him and tell him to return and inform the King that if he gathers his people to resist, we will lead the army of the Eastern Turkic Khaganate to punish him.
assistant