Explore "Simple Sabotage Field Manual" by Office of Strategic Services on Textopian. Read with annotations and highlights.
(a) Roads. Damage to roads [(3) below] is slow, and therefore impractical as a D-day or near D-day activity.
(1) Change sign posts at intersections and forks; the enemy will go the wrong way and it may be miles before he discovers his mistakes. In areas where traffic is composed primarily of enemy autos, trucks, and motor convoys of various kinds remove danger signals from curves and intersections.