From 1996 to 1998, Ngwenya was General Officer Commanding of the North West Command in Potchefstroom and from 1998 to the end of September 1999 Chief Director Force Preparation in the Army Office.
Between 1996 and 1998, Ngwenya was responsible for commanding the North West Command in Potchefstroom. From 1998 until September 1999, he held a leadership role focused on force preparation within the Army Office.