All sides involved did.
machine guns and rifles
Suppression and enfilading fire.
Poison Gas, Machine Guns and planes to say the least.
In World War 2 there were three types of machine guns used: squad support weapon, medium machine gun, and Heavy Machine gun such as the Browning M2, and the M1919
they used tanks,rifles,and machine guns
Mustard Gas Mines Barbed Wire Machine Guns
Machine guns have a higer rate of fire and so they shoot bulets faster
They all did.
They were horrible, cannons were used, machine guns watch the movie "Saving Private Ryan"
They used Maxim type or Lewis guns. They are both machine guns. .303 British .30-06 Springfield 7.92x57mm Mauser
The Vickers machine gun was the primary machine gun they used in WWI.
The machine guns were used because they fired more bullets faster and were an easier way to defend trenches without using a bolt-action rifle. They were not only more powerful but required less manpower to be used.