《旧五代史·后唐·庄宗纪三》
听说梁军将大举进军，庄宗深为忧虑，召将军官僚谋划大计，有人说： 从我们得到汶阳以来，必要大将坚守，城门之外，原本是敌人疆土，仔细想想，得不偿失。
及闻梁人将图大举，帝深忧之，召将吏谋其大计，或曰： 自我得汶阳以来，须大将固守，城门之外，元是贼疆，细而料之，得不如失。
Hearing the Liang army would be advancing on a grand scale, Zhuangzong was deeply concerned and summoned Generals and officials to plan a grand strategy. Someone advised: "Since we acquired Wenyang, it is imperative to have a great commander protect it. Places beyond the city gates are originally enemy territory. Thinking about it carefully, this will be more of a loss than a gain."
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 及闻梁人将图大举，帝深忧之，召将吏谋其大计，或曰： 自我得汶阳以来，须大将固守，城门之外，元是贼疆，细而料之，得不如失。 [/INST] Hearing the Liang army would be advancing on a grand scale, Zhuangzong was deeply concerned and summoned Generals and officials to plan a grand strategy. Someone advised: "Since we acquired Wenyang, it is imperative to have a great commander protect it. Places beyond the city gates are originally enemy territory. Thinking about it carefully, this will be more of a loss than a gain."</s>
Identify the key themes in this Classical Chinese text and explain them in English: 及闻梁人将图大举，帝深忧之，召将吏谋其大计，或曰： 自我得汶阳以来，须大将固守，城门之外，元是贼疆，细而料之，得不如失。
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Hearing the Liang army would be advancing on a grand scale, Zhuangzong was deeply concerned and summoned Generals and officials to plan a grand strategy. Someone advised: "Since we acquired Wenyang, it is imperative to have a great commander protect it. Places beyond the city gates are originally enemy territory. Thinking about it carefully, this will be more of a loss than a gain."
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