Show THINGS WAR introduced germans introduced liquid tire the introduced asphyxiating asphyxia a phi slating ting guy gas germans aci roans introduced lachrymose vapors french introduced aeroplanes aero nero planes carrying cannon french and british invented antl gas masks germans introduced sub marln introduced use of nets in trapping subina rines Gerni germans atis introduced steel arro s discharged ch arget from nero planes french introduced air torpedoes discharged from nero planes phines introduced a lancho fare creating by |