From the Jewish Partisan Encyclopedia
Jewish resistance took on different forms. Physical resistance by the partisans was something that hurt the Germans. Spiritual resistance may not have affected the Germans and their collaborators directly, but it was important to the Jews, since the Nazis wanted to take away their dignity and self-respect.
In defiance of the laws, the Jews held prayer services, or taught children to read Hebrew
There were smugglers who sent children to safety and couriers who carried messages between the ghettos, as well as forgers who created documents for use in the outside world. Jews in the work camps sabotaged guns and other products they were making for the Germans.
In Lithuania, Jewish partisans were responsible for significant damage to Nazi trains. Partisans also destroyed numerous Nazi power plants and factories, and focused their attention on other military and strategic targets, rather than on civilians.
Resistance and defiance took multiple manifestations. In her paper, “Tribute”, Christina Sternberg chronicles many unique and touching stories. She will states that “a rather detailed indication of the actually massive resistance is provided by the paper by Jack Gostl entitled ‘They Didn’t Just Go Quietly
Then there were the subtle forms of sabotage. The Nazis were focused on the use of slave labor, missing the fact that it would be easy to do hidden damage. From a book by John Diebold, Chief Scientist for Marine Operations in Norway
In 1978 I worked with Norwegian colleagues during a US–Norwegian geophysical study of the Norwegian continental margin. For seismic sources, we used World War II surplus Nazi explosives which were stored in man-made caverns along Norwegian fjords.
It was my personal observation that while the munitions dated 1939–1940 were reliable, those with dates from 1943 and later were typically weak or noneffective. This difference I ascribe either to intentional sabotage by the “Jews and concentration camp inmates” or to the simple substitution of inert materials for active ones by munitions plant managers, presumably due to the conflict between production quotas and availability of nitrates.
Speer was apparently not above “production for production’s sake” with a blind eye to quality control.
Then there was this incident reported by Richard J. Evans.
A German bomb fell through the roof of my wife’s grandmother’s house in the East End of London in 1943 and lodged, unexploded, in her bedroom wardrobe. When the bomb disposal unit opened it up, they found a note inside. “Don’t worry, English,” it said, “we’re with you. Polish workers.”
This is resistance. This is courage.