The Arbalète sauterelle type A allowed bombs to be thrown into trenches beginning what was called what?
Sauterelle The Arbalète sauterelle type A, or simply Sauterelle (French for grasshopper), was a bomb-throwing crossbow used by French, and British forces on the Western Front during World War I. It was designed to throw a hand grenade in a high trajectory into enemy trenches. It was initially dismissed by the French Army but General Henri Berthelot thought it had practical value.
Zone libre The zone libre (] , "free zone") was a partition of the French metropolitan territory during World War II, established at the Second Armistice at Compiègne on 22 June 1940. It lay to the south of the demarcation line and was administered by the French government of Marshal Philippe Pétain based in Vichy, in a relatively unrestricted fashion. To the north lay the "zone occupée" ("occupied zone") in which the powers of Vichy France were severely limited.