Huo Jun was from Zhijiang County, Nan Commandery, Jing Province, which is in present-day Zhijiang, Hubei. His elder brother, Huo Du, rallied a few hundred men from their hometown to form a militia. After Huo Du's death, Liu Biao, the Governor of Jing Province, put Huo Jun in command of the militia. When Liu Biao died in late 208, Huo Jun led his followers to join the warlord Liu Bei, who previously took shelter under Liu Biao. Liu Bei appointed Huo Jun as a General of the Household. Around 211, Liu Bei led an army from Jing Province to Yi Province to assist the provincial governorLiu Zhang in countering a rival warlord, Zhang Lu, in Hanzhong Commandery. In 212, when conflict broke out between Liu Bei and Liu Zhang, the former led his forces from Jiameng to attack the latter, leaving behind Huo Jun to defend Jiameng. At the same time, Zhang Lu sent his subordinate Yang Bo to trick Huo Jun into losing Jiameng by offering to defend Jiameng together with Huo. Huo Jun replied Yang Bo, "You can take a xiaoren's head but not a fortress." Yang Bo retreated. Later, Liu Zhang sent his officers Fu Jin, Xiang Cun and others to lead an army of thousands to attack Jiameng. Huo Jun had only a few hundred troops with him but he managed to hold his position for a year. He selected elite soldiers from among his men and launched a counterattack on Liu Zhang's forces, defeating and killing Xiang Cun in battle. In early 214, Liu Zhang surrendered to Liu Bei, after which Yi Province came under the latter's control. In recognition of Huo Jun's contributions during the campaign, Liu Bei partitioned a new commandery, Zitong, from the original Guanghan Commandery, and appointed Huo Jun as the Administrator of Zitong. Huo Jun was also promoted to the rank of a Major-General. He held office for three years before dying at the age of 40. His body was transported to Chengdu for burial. Liu Bei deeply lamented Huo Jun's death and personally led his subjects to attend Huo's funeral. Huo Jun's son, Huo Yi, continued serving Liu Bei and became a general in the state of Shu Han during the Three Kingdoms period.
