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: C.Radio
Explanation:
Working alongside film was the most popular form of entertainment in the 1930s in America. The genres that were the most popular in that decade are comedy. This is because the country was in a significant economic crisis, and people were thus trying to divert their thoughts from the gloomy daily routine. As early as the early 1930s, over 40% of Americans owned radios, increasing that percentage year by year.
Helped with communications between Natives & Spanish
The Sapa Inca served as the emperor in Inca society.
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