The shrieks of children playing can be heard by the team of 22 men in protective gear and visors, painstakingly crawling their way across a dusty hillock in Afghanistan. At various points during the country’s three decades of wars the landcape has been sown with a devastating crop of landmines.

The school, a few miles north of Kabul, has the misfortune of being located in one of the most heavily mined areas in one of the most heavily mined countries in the world.