 Nyorai mberi kwechikamu chino - Viljoen ndiye aiva mukuru wemauto weSADF aitungamirira Operation Savannahmuna 1975. Anonziwo ndiye akaronga kurwisa kukuru kwekutanga munhoroondo yemauto eSouth Africa, Cassinga, kurwisa kwakaitwa nevanopandukira SWAPO. Pasinei nechinzvimbo chake, Viljoen akanga aripo panguva yehondo, achipa izvo zvakatsanangurwa se swashbuckling hutungamiri hwepamberi, izvo zvakamuita kuti aremekedzwe nevamwe vake vakawanda veAfrikaners. 