First World War > Strategy and Tactics in the First World War Strategy and Tactics in the First World War Strategy and Tactics in the First World WarThe Schliefffen Plan Plan 17 Patrols & Raids Attacks & Offensives Infantry Tactics Peaceful Penetration Creeping Barrage Machine-Gun Pillboxes Light Flares Chlorine Gas Tank Attacks The Hindenburg Line Plan 19 Tunnelling Snipers Cavalry Tactics Artillery Barrage Preliminary Bombardment Fortresses Flame-Throwers Mustard Gas Infiltration Tactics