he dialled 101, and emergency services sent deminers ivan shepelev and ihor ovcharuk. >> translator:yanik's home, a sweep revealed an unexploded cluster bomb. those are tricky, so they blew it in place. ivan shepelev told us, as the russians fled, they also left booby traps. >> translator: we have seen cases, unfortunately, where explosives were found in civilian homes. >> ovcharuk said, my team also had to work on removing our dead ukrainian soldiers whose bodies had been mined. in 2022, ihor ovcharuk's kneecap was shattered when a fellow deminer stepped on a mine and lost his foot. shepelev told us, we know every explosive we remove means that someone's life is saved. a few weeks after our visit, a russian missile wrecked the fire station where they're based. some were injured but not shepelev or ovcharuk. >> what is the scope of the mine threat in ukraine? >> i think the scope is unrecognizable in modern times. >> pete smith heads demining here for the halo trust, a charity founded in 1988 to demine war zones. smith was 33 years in the british army and awarded by queen elizabeth f