《国语·吴语·越王勾践命诸稽郢行成》
申胥和华登选拔训练吴国的青年把他们组编成军队，还不曾被打败过。
夫申胥、华登简服吴国之士于甲兵，而未尝有所挫也。
Shen Xu and Hua Deng selected and trained the youth of Wu and organized them into an army, which has never been defeated.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 夫申胥、华登简服吴国之士于甲兵，而未尝有所挫也。 [/INST] Shen Xu and Hua Deng selected and trained the youth of Wu and organized them into an army, which has never been defeated.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 夫申胥、华登简服吴国之士于甲兵，而未尝有所挫也。
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Shen Xu and Hua Deng selected and trained the youth of Wu and organized them into an army, which has never been defeated.
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