Relier Pairs TRENCH DEFINITIONS WW1Version en ligne Repaso de las Partes de una trinchera de la Primera Guerra Mundial par Estibaliz Martinez 1 Sump 2 Communications Trench 3 No Man’s Land 4 Sandbags 5 Wire Break 6 Trench Block 7 Bunker A break in the barbed wire to allow soldiers out into no man’s land An underground shelter. Often used for storage Trenches between the front line trenches and the support trenches, used by messengers to relay messages to the front line and back and for telephone wire to be strung up to the front line A channel at the bottom of the trench to allow water to drain away. A block of barbed wire and wooden obstacles to stop any enemy soldier from advancing through the trench system. A bag filled with sand to protect the trench from flooding and the men from bullets. The area between the opposing sides’ front lines.