Either they had been decimated by the war or they fled the country. We had to train people to manage teams, from foremen to project managers.
Some areas have to be done during the dry season, and others during the wet season.
Moreover, mines move during the rainy season. Vegetation grows very rapidly. It has to be cut down before the mines can be cleared. That means roads have to be opened that are themselves mined. Type F1A4 detectors are used, which are manufactured by Minelab Electronics Pty. Ltd., located in Torrensville, Australia.