Definition of "blindage"

The key unit of life here is the dugout – what the soldiers call a ‘blindage’ – an underground burrow where half a dozen men share the narrow space between the bunks with weapons, ammunition, biscuits, tea bags, and a jumble of other essentials (there is also usually a cat, not to mention the mice).

2017 January 14, Roland Oliphant, “Special report: Loose cannons at the frontline of Ukraine's forgotten war”, in The Telegraph‎