My father Sapper Harry Ibertson was in 5 Field Company of the Sappers in the South African Army. 5 Field Company travelled overland from Pretoria to Kenya. This was unusual as most of the forces went by ship from Durban to Mombasa. Does anyone have any information about the route taken & the reason for travelling overland. The unit left on 15 November 1940 and took 9 days to reach Gilgil in Kenya.Any help would be appreciated.