Enormous amounts of unexploded ordnance across the Gaza Strip will threaten Palestinians for years to come, even if the Israel-Hamas ceasefire holds up, as it largely has for roughly a month now.

The term “unexploded ordnance,” often called UXO, refers to weapons such as artillery shells, grenades, and bombs that failed to detonate as normal, but can still be triggered and thus pose a risk to people long after a conflict ends.