《战国策·西周·雍氏之役》
楚将昭应当初曾对楚王说： 韩国疲于征战，因而粮库空虚，已经没有什么力量守住城池。我要乘韩国饥荒，率兵夺取韩国的雍氏，不到一个月就能攻下。 
昭应谓楚王曰： 韩氏罢于兵，仓廪空，无以守城，吾收之以饥，不过一月必拔之。 
Chu General Zhao Ying had said to the King of Chu, " South Korea is exhausted from the war, so the granary is empty and there is no strength to defend the city. I want to take advantage of South Korea's famine, lead my troops to seize Yongshi of South Korea, and it will be captured in less than a month. "
<s>[INST] Kindly elucidate the central themes in this passage in English: 昭应谓楚王曰： 韩氏罢于兵，仓廪空，无以守城，吾收之以饥，不过一月必拔之。  [/INST] Chu General Zhao Ying had said to the King of Chu, " South Korea is exhausted from the war, so the granary is empty and there is no strength to defend the city. I want to take advantage of South Korea's famine, lead my troops to seize Yongshi of South Korea, and it will be captured in less than a month. "</s>
Kindly elucidate the central themes in this passage in English: 昭应谓楚王曰： 韩氏罢于兵，仓廪空，无以守城，吾收之以饥，不过一月必拔之。
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Chu General Zhao Ying had said to the King of Chu, " South Korea is exhausted from the war, so the granary is empty and there is no strength to defend the city. I want to take advantage of South Korea's famine, lead my troops to seize Yongshi of South Korea, and it will be captured in less than a month. "
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