Trench warfare was one type, and one which was used more than it had been in any previous war (and maybe since then). Also, things such as gas attacks are classed as well as use of tanks to invade enemy territory and fighter planes.
trench warfare
trench
it was a common type of warfare back then and is still today
it was a common type of warfare back then and is still today
The machine gun changed warfare
trench warfare
trench
Trench warfare is famous because of its large scale use during World War 1. During the war, both sides used this type of warfare for protection.
trench fighting
trench fighting
Naval warfare in the Mediterranean during World War I happened in 1919-08.
Trench Warfare
Trench Warfare. AKA: Slaughter (men getting in the way of machines)
Trench warfare was one of the new forms of warfare introduced during World War 1. Another new form of warfare was chemical warfare.
guerrilla warfare
During World War 2! lol
it was a common type of warfare back then and is still today