《元史·列传·卷九十五》
世子忄甚报告说： 叛军据江华岛，宜率水兵登陆进击。 
世子愖复言： 叛兵据江华岛，宜率军水陆进击之。 
The crown prince replied: The rebels are based in Ganghwa Island and we should lead the navy to attack them.
<s>[INST] Kindly elucidate the central themes in this passage in English: 世子愖复言： 叛兵据江华岛，宜率军水陆进击之。  [/INST] The crown prince replied: The rebels are based in Ganghwa Island and we should lead the navy to attack them.</s>
Kindly elucidate the central themes in this passage in English: 世子愖复言： 叛兵据江华岛，宜率军水陆进击之。
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The crown prince replied: The rebels are based in Ganghwa Island and we should lead the navy to attack them.
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