A small, shallow hole dug in the ground by soldiers for protection during combat.
Combination of 'fox' (the animal) and 'hole' (a burrow). Soldiers named these trenches after foxholes because they resembled the protective burrows that foxes dig—the comparison suggests small, clever hiding places.
Soldiers called defensive trenches 'foxholes' because they mimicked how foxes dig burrows for protection—it's a perfect example of how everyday observations of nature shaped military vocabulary.
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