Art, math, science, maybe psychology
<span>aim to solve the monarchys financial crisis</span>
Https://www.army.mil/article/49291/pershings_decision_how_the_united_states_fought_its_first_modern_coalition_war
this might help you :)
I would have to say the answer is Patriotism
By the end of ww1 people were using airplanes in combat, they weren’t the best during war but by ww2 they had evolved. It was hard to fly an airplane and shoot at the target especially with regular guns and not a machine gun.
