Gas, machine guns and tanks. War always seems to usher in a new era of tech, and this one was no different. Also, trenches were used for the first time - and the last. It was seen as a huge, unsuccessful stalemate.
That question has a number of answers. Many weapons were used for the first time in WW1. The aircraft as a bomber, aircraft to fight other aircraft, the tank as a cover for infantry, more efficient machine guns, germ warfare, fast, heavily armed ships, motor torpedo boats. All of these changed warfare.
because it was the early years of wepons and had to use toxin in the gunpowder
because now they have machine guns, air planes , poison gas, bigger war ships , stuff like that more that other wars previous to ww1.
Machine Guns, Knife-Rifels and poo guns
M16
The war was the deadliest in history up to that point
It was called the modern war because of new weapons such as machine guns advanced technology and etc
Cold War=Arms Race (new weapons)
Trench warfare involving Machine Guns, Tanks and Chemical agents as well as Planes were the new weapons of World War One. The main problem was that neither side had much time to develop much of a strategy for their use and most of the war was a stalemate with thousands being slaughtered on either side
How about you check your grammar before posting a question.
The aircraft carrier was a new invention in World War I. The use of deadly gases was also a new invention in World War I.
More people were killed. Also due to new technology, the United States was able to use weapons such as atomic bombs in their favor.
Some of the newest weapons unveiled during WWI included the machine gun, and poisonous gas. Both huge reasons as to why "The Great War" was so deadly.
There were new, more deadly weapons, and the hygiene and medical abilities were extremely limited. Also, due to the tangled web of alliances, the whole of Europe, the US, plus all their colonies were involved.
Chemical weapons and the machine gun
M16
The new weapons of world war one were machine guns,Tanks,poison gas, and planes og WW1
Tanks
Because the old weapons become to common and considered to be to predictable
Germany did
Some are