The Albigensian Crusade or Cathar Crusade -LRB- NUMBER@1 NUMBER@2 -RRB- was a 20-year military campaign initiated by the ORGANIZATION@1 to eliminate the MISC@1 heresy in LOCATION@1 .

The Albigensian Crusade or Cathar Crusade -LRB- NUMBER@1 -- NUMBER@2 -RRB- was a 20-year military campaign . It was initiated by the ORGANIZATION@2 to eliminate the MISC@1 heresy in LOCATION@1 .
