There are very many changes, but the 2 primary are the use of airplanes and machine guns
German Blitzkrieg Fire and Manuver vs trench warfare of WW1
In WW1 there was a trench warfare. In the 2nd there was a different style of warfare. Like Urban Warfare or Blitzkrieg
Southeast Asia: 1. Ground warfare occurred in the Republic of South Vietnam (RVN) 2. Airwarfare occurred in the skies over North Vietnam 3. Covert warfare occurred in the nations of Cambodia and Laos 4. Riverine warfare occurred in all waterways of RVN
there were many changes between the weapons in world war one and world war two, in world war two we now have the atoimic bomb, also the guns were better and have longer range.
Mobile warfare (Blitzkrieg) as compared to the static trenchlines of WW1 .
1. Zimmerman note 2. Germany declares unrestricted submarine warfare 3. Bolshevik Revolution
The lands of Palestine were taken by the Jew.
WW1 introduced submarine warfare, tanks, chemical warfare, and aerial combat. Man's history already knew battleship warfare from Tsushima in 1905; and massed land warfare consisting of infantry. WW2 REFINED submarine warfare, tanks, and aerial warfare; chemical warfare was outlawed by treaty.
Well, the answer is your mom.
World war 1 had Trench Warfare and World war 2 didn't really have that, thus World War 2 was much more mobile. WW1 used chemical weapons, which WW2 didn't, mainly because Hiltler banned their use after he had experienced the terrible effects of gas when he served on The Western Front in WW1. WW2 involved much more air combat, while WW1 involved planes used primarily for recon purposes.
Modern warfare 2
modern warfare 2 is better .