The Fourteenth Amendment's equal protection clause was enacted to ensure that all people have the same right within the law regardless of where they came from or the color of their skin. This later on lead to the principle, that Even Government officials will have to be subjected to law just as ordinary citizen do. Which lead to the creation of check and balance system
Airplanes were vital for ww1 to ease transport of amo and soon guns on the planes including bombs this made it easier for to launch quick air strikes on places like bases vulnerable to air strikes
