 Collectively, the CMR, the CMY, the burghers, and the volunteers, were referred to as the "Colonial Forces".In the Northern Border Rebellion (1878), Colonial Forces were deployed against the Koranna in the districts along the Orange River.While British regiments were away in Zululand during the Anglo-Zulu War (1879), volunteer units were called up to man the garrisons in the Transkei and elsewhere.