《史记·七十列传·东越列传》
待到他的军队到达揭阳时，他就以海上有风浪为借口，不再向前进军，采取骑墙观望的态度，暗中又派人与南越联系。
兵至揭扬，以海风波为解，不行，持两端，阴使南越。
When his army reached Jieyang, he used strong winds on the ocean as an excuse to stop advancing, adopting an attitude of sitting on the fence, and secretly sent people to contact Nanyue.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 兵至揭扬，以海风波为解，不行，持两端，阴使南越。 [/INST] When his army reached Jieyang, he used strong winds on the ocean as an excuse to stop advancing, adopting an attitude of sitting on the fence, and secretly sent people to contact Nanyue.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 兵至揭扬，以海风波为解，不行，持两端，阴使南越。
user
When his army reached Jieyang, he used strong winds on the ocean as an excuse to stop advancing, adopting an attitude of sitting on the fence, and secretly sent people to contact Nanyue.
assistant