Glenbrook Tunnel War One. The first was Chlorine gas which was introduced by the Germans at the Second battle of Ypres in April 1915. This was followed by the use of Phosphene Gas, also introduced by the Germans. These attacked victims' respiratory organs causing coughing and choking. The Germans used Mustard Gas, a more advanced gas, for the first time at Riga (or Yperite) in September 1917. It caused both internal and external blistering in its victims. The blistering was often delayed and remained in the ground for weeks afterwards making capture of infected trenches dangerous. Protection against mustard gas was far
Battle of Monastir (1917) Battle of Monastir (1917) The Battle of Monastir (1917) was a failed French attack against German-Bulgarian fortifications North and West of Monastir, between March 12 and May 26, 1917 during the Salonika Campaign in World War I. The battle, or, better said, series of operations, is known under several names. In French it is known as "Bataille de la cote 1248" (Battle of Hill 1248) and "Bataille de Pelister" (or Péristéri) after the Pelister mountain. In Bulgarian it is known as the "Battle of Chervena Stena", after the Chervena Stena or Crvena Stena ridge, also in the Pelister mountain range.