Ypres

Ypres
    n 1: battle in World War I (1917); an Allied offensive which
         eventually failed because tanks bogged down in the
         waterlogged soil of Flanders; Germans introduced mustard
         gas which interfered with the Allied artillery [syn:
         {Ypres}, {battle of Ypres}, {third battle of Ypres}]
    2: battle in World War I (1915); Germans wanted to try chlorine
       (a toxic yellow gas) as a weapon and succeeded in taking
       considerable territory from the Allied salient [syn: {Ypres},
       {battle of Ypres}, {second battle of Ypres}]
    3: battle in World War I (1914); heavy but indecisive fighting
       as the Allies and the Germans both tried to break through the
       lines of the others [syn: {Ypres}, {battle of Ypres}, {first
       battle of Ypres}]