《史记·三十世家·楚世家》
于是他自称武王，和随国人订立盟约后才撤军。
乃自立为武王，与随人盟而去。
Then, after forming an alliance with the representative from Sui, King Xiong Tong of Chu claimed the title of King Wu and then withdrew his troops.
<s>[INST] Render the following Classical Chinese text into fluent English: 乃自立为武王，与随人盟而去。 [/INST] Then, after forming an alliance with the representative from Sui, King Xiong Tong of Chu claimed the title of King Wu and then withdrew his troops.</s>
Render the following Classical Chinese text into fluent English: 乃自立为武王，与随人盟而去。
user
Then, after forming an alliance with the representative from Sui, King Xiong Tong of Chu claimed the title of King Wu and then withdrew his troops.
assistant