“Camouflage is the art of concealing that something is concealed. Its keynote is deception. By it, objects are rendered indistinguishable or unrecognizable by means of a covering or disguise. Concealment, in the limited sense of hiding from view, is screening not camouflage.”

—The War Office, Manual of Field Works (All Arms). 1921. (Provisional.) (London: His Majesty’s Stationery Office, 1921. 93.)