Between April and July 1940 alone, more than 35 million tablets of “Panzerschokolade” (tank chocolate) fueled the Blitzkrieg across Europe, spurring lasting rumors of a Nazi superpill that gave soldiers extraordinary powers. (The dark aftereffects of crystal meth became clearer over time, and German officials restricted its used in 1941, though it remained widely used until the end of the war—and stayed part of the East German army’s war chest until 1988.)
