Campaign in the west: A German railway gun firing at French targets; May 1940

Battle of France

German "Nebelwerfer" rocket launcher battery (21cm/42) in firing position. The grenadiers moving away, taking cover from the back blast. August 1943.

Nebelwerfer ready to fire

A 3.7 cm FlaK 18 battery; FlaK (FliegerabwehrKanone, "aircraft defense cannon", also cited as Flugabwehrkanone). 
   The 3.7 cm Flak 18 was an anti-aircraft cannon. It was fully automatic and effective against aircraft flying at altitudes up to 4,200 m.