[2] In the war against Northern Qi of 573, Zhou Luohou fought under General Wu Mingche in Jiangyang (江陽, modern Yangzhou), when an arrow struck him in his left eye.
He continued to fight in the war, and when Wu Mingche was surrounded by Northern Qi troops in Suyu (宿預, modern Suqian), Zhou Luohou and his subordinate Xiao Mohe bravely fought off and routed the enemy.
When the war ended, Zhou Luohou received the title Guangyuan General (光遠將軍) and governed Zhongli Commandery (modern Fengyang County).
[3] In 579, Zhou Luohou became a Commissioner with Extraordinary Powers (使持節) and put in charge of military affairs in Huo Prefecture (霍州, modern Huoshan County).
After he quashed rebels in twelve mountainous regions, he received the titles General of the Right Army (右軍將軍) and Duke of Shi'an County (始安縣伯), which entitled him to land taxes of four hundred families.
[3] A minor official called Wu Shixing (吳世興) submitted a secret memorial which cautioned against Zhou's increasing influence away from the capital.
[2] When Chen Shubao's handwritten letter arrived, Zhou allegedly "wept deeply for three days" before he disbanded his army and surrendered.
That autumn, Zhou received the honorary title yi tong sansi (儀同三司, "Prestige equal to Three Offices") in a pompous ceremony.
A Sui expeditionary army of 300,000 men was hastily assembled under the prince Yang Liang, with Zhou Luohou in charge of the navy.
With Yang Su's permission, he led twenty cavalries to attack the disorganized Turkic troops, and routed the enemy after several hours of intense fighting.
[2] In 601, he was made the Right Palace Police Commander for the Heir Apparent (東宮右虞候率) and promoted to the rank of a marquis, with an income of 1500 families' land taxes.