In March 2020, Namibian president Hage Geingob appointed Vilho as the Minister of Defense and Veteran Affairs.

[1] Vilho studied for an Advanced Course and Resource Management Course at Fort Benning from 1990 to 1992 as a Finance Officer, and in 1994 attended the Junior Staff and Command Course, Namibia.

Vilho retired from active military service in September 2017 and was appointed as Executive Director of the Ministry of Defence.

On 21 March 2020 president Hage Geingob appointed him as Minister of Defence succeeding Penda ya Ndakolo.

On 6 April 2021 Vilho resigned due to allegations of holding an undeclared bank account in Hong Kong that is "linked to illicit proceeds".