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What does HIO stand for?

HIO stands for High Intensity Operations

This definition appears very rarely and is found in the following Acronym Finder categories:

  • Military and Government

See other definitions of HIO

Other Resources:
We have 19 other meanings of HIO in our Acronym Attic

Samples in periodicals archive:

His commanding officer described him as having "an exemplary 20-year career" including dangerous high intensity operations in Northern Ireland and Bosnia when he specialised in telecommunications, electronic warfare and countermeasures.