The eyes of a trio of Cambodian deminers widen as they watch Motoyuki Sato demonstrate the latest upgrades to one of the world¡¯s most advanced landmine detectors.

¡°See,¡± says Sato, handing off the sensor. ¡°Your turn. Time to test.¡±

Stepping out from the shade of the trees and into Cambodia¡¯s searing dry season heat, officers begin burying defused landmines in the sun-baked ground. The Japan-developed Advanced Landmine Imaging System (ALIS) they are testing combines a metal detector and ground-penetrating radar to create an image of a buried object on a smartphone.