《宋史·列传·卷三十七》
不久契丹军队果然到来，因为宋朝有准备，避开而去。
既而契丹果至，以有备，引去。
Soon the Khitan army arrived, but as the Song Dynasty was prepared, they turned away.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 既而契丹果至，以有备，引去。 [/INST] Soon the Khitan army arrived, but as the Song Dynasty was prepared, they turned away.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 既而契丹果至，以有备，引去。
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Soon the Khitan army arrived, but as the Song Dynasty was prepared, they turned away.
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