The machine gun changed warfare
The new weapon that caused the most casualties in World War I was the machine gun. Its ability to fire hundreds of rounds per minute allowed for devastating firepower on the battlefield, leading to massive losses during trench warfare. The widespread use of machine guns contributed to the high casualty rates, as they were effective in defending positions and repelling infantry charges. This technological advancement fundamentally changed military tactics and the nature of warfare during the conflict.
The use of chemical weapons during the first World War ; see relevant link below .
New inventions changed warfare during World War 1 by creating new weapons and creating more casualties. Some of the inventions during World War 1 were tanks, infantry rifles, and machine guns.
Although airplanes changed from cloth covered wooden airplanes of WWI into metal airplanes of WWII, as well as more advanced and powerful bombers; the real change was "Naval Warfare." Air power completely eliminated the mighty battleship as a decisive naval weapon. Airplanes (launched from aircraft carriers) became the new naval weapon. WWII may be unique in that it was the only war in history in which aircraft carriers fought aircraft carriers.
trench warfare
The new weapon that caused the most casualties in World War I was the machine gun. Its ability to fire hundreds of rounds per minute allowed for devastating firepower on the battlefield, leading to massive losses during trench warfare. The widespread use of machine guns contributed to the high casualty rates, as they were effective in defending positions and repelling infantry charges. This technological advancement fundamentally changed military tactics and the nature of warfare during the conflict.
The use of chemical weapons during the first World War ; see relevant link below .
Trench Warfare.
Trench Warfare
Chemical weapons (warfare)
Trench warfare was one of the new forms of warfare introduced during World War 1. Another new form of warfare was chemical warfare.
The Atomic bomb(s) .
New inventions changed warfare during World War 1 by creating new weapons and creating more casualties. Some of the inventions during World War 1 were tanks, infantry rifles, and machine guns.
Naval warfare in the Mediterranean during World War I happened in 1919-08.
The exploding shell.
The invention of the airplane changed history in many ways. Two of the most significant changes were the following: 1. Transportation of people and cargo moved faster than railroad or ocean cargo vessels; and 2. The airplane became a new weapon for warfare.
Mustard Gas was introduced into warfare in September of 1917.