What famous battles did Emperor Guangwu Liu Xiu take part in?

Liu Xiu's campaign to pacify Xiao Wei took place in May of the 6th year of Jianwu (AD 30). Liu Xiuqin went to Chang 'an and organized more than 70,000 troops led by seven generals, including Jianwei General Geng Yan, to attack the land of Longdong in Xiao Wei. Liu Xiujun was defeated by Xiao Wei General Wang Yuan and surrendered to Guanzhong. In the winter of the fourth year of Jianwu (AD 28), Xiao Wei sent Ma Yuan to Luoyang. Knowing that Ma Yuan was sent to Gongsun Shu, Liu Xiu was snubbed by Gongsun Shu and was especially kind to Ma Yuan. Ma Yuan was deeply moved. Therefore, after Ma Yuan returned to Tianshui, he praised Liu Xiu in front of Xiao Wei, compared Liu Xiu to Liu Bang, and sincerely persuaded Xiao Wei to join Liu Xiu. Later, Liu Xiu sent messengers several times to persuade Xiao Wei to enter the DPRK, but Xiao Wei politely refused. In the fifth year of Jianwu (AD 29), Liu Xiu sent his friends in Xiao Wei to visit Tianshui to persuade Xiao Wei to surrender to North Korea and sent his son to serve.