World War I completely changed the way wars were fought.
Trench warfare, which was the norm just a century ago was seen as an nonviable strategy.
Modern machines such as tanks and airplanes made trench warfare mostly about keeping ground and resulted in stalemates.
Also, it was the first time that modern tanks, planes and machine guns were being used for first time at such a large scale, resulting in an unprecedented level of death and carnage.
Military generals soon realized that time-honored military code of conducts were now obsolete and a completely new form of strategy was now required.
Answer:
John Rockefeller was the oil monopoly
Explanation:
To <span>raising and contributing campaign funds to canidates who agree with the views.</span>
The major cause is the Germany was using submarines to sink down the American ships and killed all of the American soldiers, and that is why the U.S join the war and pay back... mark me brainlist please...
