ng or eliminating vital fortifications. Although not as fast as modern tanks, and not as heavily armed, World War I saw the first mass use of tanks in open warfare.
             The idea of the tank was first designed by Leonardo daVinci in 1482. The French attempted to create the armored vehicles of which daVinci spoke, but it was the British who developed the first track-laying armored vehicles during World War I. On September 16, 1916, forty nine tanks were used at the battle of Somme near Courcelette, France, with negative results. A year later, in November 1917, 400 tanks penetrated the Hindenberg line near Cambrai on the Eastern Front. This attack captured 8000 enemy soldiers and 100 enemy guns. Through this battle, the role of the tank was established in modern warfare.
             This particularly horrific method of warfare is based on releasing toxins or incapaci
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