The South African Defence Force deployed a number of Combat Groups comprising South African and Angolan elements during Operation Savannah (Angola). Initially, only Combat Groups A and B were deployed, with the remaining groups being mobilised and deployed into Angola later in the campaign. There has been much dispute the overall size of Task Force Zulu. Current evidence indicates that the Task Force started with approximately 500 men and grew to a total of 2,900 with the formation of Battle Groups Foxbat, Orange and X-Ray.