Tanks
Tanks became made their debut in 1917 when a force of British tanks cleared a five mile path of destruction through the impenetrable German trenches in a day which would have taken close to three months using common practices. The tank was a metal behemoth that the world had never seen and was extremely frightening to the men that faced it however, it was extremely slow rolling at 4mph. It had absolutely no ventilation for exhaust fumes and the armor was so thin that small arms fire would often be th cause of the crews death. The Germans tank program never took off and thei AV7 was the worst tank of the era where as the British and French tanks were iron beasts that every man on the battlefield feared. As for America despite what movies show not a single American tank made it to the battle field.
Planes
April 1, 1915 April fools day played an integral in the development in aircraft into what we see today. A pilot named Roland Garros shot down a German Albotros war plane. It was by no means the first kill of the war but it was the first kill with a plane that was designed only for war. The French had invented a plane that could sustain fire from a forward firing machine gun unlike any other plane.With this plane Garros scored three more kills until he was forced to land in German territory where he was taken prisoner before he could burn the plane. German technicians went to work constructing and modifying the German air force. This ushered in dogfighting. Dogfighting is a form of combat where two or more planes engaged one another in a sustained battle. Often dogfights were won by whoever had the most planes and best pilots, the reason that they are so important is that once a dogfight is won air superiority becomes a resource to be capitalized upon. With the air above a battle field clear off enemy planes, it becomes easy to destroy anti-air positions as well as spy on troops bomb trenches, and strafe troops in and around the trenches.
Armament's
In the start, planes were only unarmed scouts. That is until an unknown pilot brought along a side arm and began to fire at enemy planes. Once the Garro wedge was invented countries went hog wild building modifications for their plane. This shaped planes commercial and military into what they are today.