M1 Garand
M1A1 Thompson
M1 Carbine (Paratrooper version: M1A1 Carbine)
Springfield
Bazooka
MKII Fragmentation Grenade
Browning Automatic Rifle
A compliment of light and heavy MGs, most made by Browning
M18 Smoke Grenade
Explosives/Satchel Charges
.45 Colt (not general issue)
Various knives
Nuclear Bombs
War elephants.
Chemical weapons and the machine gun
ak47
Cold War=Arms Race (new weapons)
It changed war in the trenches because
Yes there are new weapons in gears of war 3. They even improved some weapons like the hammer burst it now has a bayonet on the end which you can stab people with. One of the new weapons is the double barrel shotgun. You can see it in the gears of war 3 trailer when Marcus saves Dom before hes shot by a Locust.
Atomic Weapons.
to win the war or to be stronger
M16
Tanks
The new weapons of world war one were machine guns,Tanks,poison gas, and planes og WW1
Because the old weapons become to common and considered to be to predictable