Wang Jun was from Hu County, Hongnong Commandery, which is located west of present-day Lingbao, Henan. He was born in a family of government officials. He was known for his good looks, and for being well-read and ambitious. He started his career as an Assistant Officer in the office of Hedong Commandery. Yang Ji, a nephew of the Jin dynasty general Yang Hu, once told his uncle to be wary of Wang Jun because he was extravagant and unbridled in his ways. However, Yang Hu recognised Wang Jun as a rare talent and regarded him highly. In 272, after Wang Jun was appointed as the Administrator of Guanghan Commandery, Yang Hu further recommended him to be the Inspector of Yi Province. During this time, Emperor Wu ordered him to supervise the construction of large battleships, each decorated with images of ferocious beasts and capable of holding 2,000 or more soldiers. The battleships were meant for use in a campaign against the Jin dynasty's rival state, Eastern Wu. In 279, Wang Jun wrote a memorial to Emperor Wu, requesting that he order a military campaign against Eastern Wu. The emperor agreed, appointed Wang Jun as Prancing Dragon General and ordered him to lead troops from Yi Province's capital, Chengdu, to invade Eastern Wu. Wang Jun and his army conquered strategic locations in Wu territory such as Xiling, Xiakou and Wuchang. When the Jin invasion forces reached the Wu capital Jianye, the last Wu emperor Sun Hao surrendered, thus bringing an end to the conquest of Wu. Although Wang Jun had made great achievements in the campaign, another general Wang Hun slandered him in front of Emperor Wu, so he did not receive due recognition for his contributions. When Wang Jun wanted to seek redress for his grievances, his subordinate Fan Tong advised him against it, saying that it would be unwise to do so. Later, the official Li Mi spoke up for Wang Jun in front of Emperor Wu, who realised that he had treated Wang Jun unfairly earlier on. Emperor Wu then promoted Wang Jun to Senior General Who Guards the Army and gave him an additional appointment as a Regular Mounted Attendant. He also enfeoffed Wang Jun as the Marquis of Xiangyang. Wang Jun became more arrogant and extravagant in his lifestyle as he entered old age. In 285, he was reassigned to be Senior General Who Pacifies the Army. However, he died within the same year and was buried at Mount Baigu near present-day Changzhi, Shanxi. Emperor Wu honoured him with the posthumous title "Marquis Wu".
Family
Wang Jun married Xu Miao's daughter. He had at least two sons: Wang Ju and Wang Chang. Wang Ju inherited his father's peerage as the Marquis of Xiangyang, while Wang Chang served as a Mounted Gentleman in the Jin government. Wang Chang's son, Wang Cui, married a Jin dynasty princess, Princess Yingchuan, and served as the Administrator of Wei Commandery.
