《资治通鉴·汉纪·汉纪五十八》
等到曹操进攻孙权，孙权要求刘备回军援救。
及曹操攻孙权，权呼备自救。
When Cao Cao attacked Sun Quan, Sun Quan asked Liu Bei to return to the army to rescue him.
<s>[INST] Translate the following Classical Chinese text into English: 及曹操攻孙权，权呼备自救。 [/INST] When Cao Cao attacked Sun Quan, Sun Quan asked Liu Bei to return to the army to rescue him.</s>
Translate the following Classical Chinese text into English: 及曹操攻孙权，权呼备自救。
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When Cao Cao attacked Sun Quan, Sun Quan asked Liu Bei to return to the army to rescue him.
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