A World War II-era field manual for saboteurs.
During World War II, the Office of Strategic Services (OSS) was manned with thousands of soldiers and spies, operating behind enemy lines to organize local resistance, gather intelligence and generally cause chaos for the enemy in occupied Europe. But as one OSS manual shows, sabotage isn’t always about blowing up railways or severing communication lines. Sometimes it’s as simple as being the absolute worst employee possible for your Nazi occupiers.