B1A4's CNU will be enlisting privately for military service.

Earlier this month, WM Entertainment announced CNU would be enlisting soon, and he officially starts his basic training on January 22. As the oldest member of B1A4, CNU is the first member to start serving to fulfill his military duties. 

CNU's reps said, "Following CNU's wishes to enlist quietly, he'll be starting his military servce on January 22. We will not be revealing his enlistment time or location." WM Entertainment added there will be no special fan meeting or event for CNU's enlistment either, stating, "We ask for fans' understanding."    

In other news, CNU will be filming for 'Happy Together' on the 19th.