Concertina wire takes its name from the concertina, an accordion-like instrument whose bellows fold in and out. The term fits the World War I innovation: coiled barbed or razor wire that travels compactly, then expands to fill space atop a fence...
in the bag other.— «After a year training at Burnham Military Camp and in Egypt, he found himself in Crete and “in the bag,” as they called it, a prisoner of war on a bitter journey to the “hell camp” in Germany...