Unsymmetrical dimethylhydrazine (UDMH) (1,1-Dimethylhydrazine) is a hypergolicrocket fuel[?] ingredient, often used in combination with the oxidiser, nitrogen tetroxide.
UDMH is toxic, and can explode in the presence of oxidisers.
... trains, blew up ammunition depots and attacked German garrison. Victory did not come easily. In July 14 in Vercors[?] a newly reinforced maquis group fought 200.000 Waffen ...