Why the war was so deadly

TECHNOLOGY: Because they had advanced technologies. They came up with synthetic rubber for the tires in a German fabric. Now they don’t need to depend on raw material CHEMICAL WEAPONS: The Germans came up with poison gas. It was used by both. Some gases caused blindness or severe blisters, others death by choking. TANKS: Introduced by the British an armored combat vehicle that moved on-chain tracks and thus could cross many types of terrain AUTOMATIC WEAPONS: soldiers carried the weapons. The machine gun fires ammunition automatically. The gun could wipe out waves of attackers PLANES: Now the fight was also in the sky. The Americans were the first ones and they started to manufacture Submaries: gemrna invasion and germans dominate the warts thatnk to the U-boats