How new technology canged warfare during world war 1

new technologies changed warfare because nobody ever had to face mustard gas or trench warfare before. the unknowing and harshness of these made mustard gas banned in war and the (in the best way i can put it) injury/illness of trench foot to make people loose there legs, until combat boots where created.

hitler was elected as a strong leader by germans who felt angry following the treaty of versailles.

they believed democracy was worth the fight