Meanings of uxos in English

Will they indeed be safe in terms of the presence of UXOs?

Will they indeed be safe in terms of the presence of UXOs? De Boer said.

But concerns about wider resettlement remain, not least the danger of unexploded bombs and shells, or UXOs.

Another major menace is unexploded ordnance (UXOs), bombs dropped during air raids or artillery shells and mortar bombs which failed to detonate.