Sabotage
Sabotage is to destroy something on purpose to make the owner weaker. The owner can be for example the government or a company. A person who does this a called a saboteur.
Sabotage Media
A United States poster from the World War II-era that was used to inform people about what they should do if they suspect sabotage
Unauthorized stencil urging sabotage and picketing
Industrial Workers of the World "stickerette" or "silent agitator"
World War II poster from the United States
Japanese experts inspect the scene of the "railway sabotage" on the South Manchurian Railway in 1931. The "railroad sabotage" was one of the events that led to the Mukden Incident and the Japanese occupation of Manchuria.
A film from Camp Claiborne from March 8, 9 and 10 1944 of derailment tests done on the Claiborne-Polk Military Railroad. The tests were done to better train allied personnel in acts of rail sabotage during World War 2.
Palestine Railway's K class 2-8-4T steam locomotive and freight train on the Jaffa and Jerusalem line after being sabotaged by Jewish paramilitary forces in 1946.