Question

How did new technologies increase the number of casualties compared with previous wars

Answer 1

Well if your talking bout guns they became a lot more accurate and they could hold more bullets cause the clips

Answer 2

Way more brutal military weapons caused more deaths.

Step-by-step explanation:

Some of the new technologies were things like Poison gas, gas masks, armored tanks, aircraft, since nobody knew how to fight those things, the governments used them to increase the death charts to really high levels.

It was with the flow of time that the governments knew how to fight them.