"World War II". Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc., 2013. Web. 05 Nov. 2013. .
World War I was the culmination of many things. On the surface, it was the ultimate in international disputes. Never before had the nations of the civilized world boiled over on such an enormous level. So large was the scale of World War I that there were few countries who did not feel its effects.
"First World War.com - Feature Articles - Life in the Trenches." First World War.com - A Multimedia History of World War One. N.p., n.d. Web. 3 Mar. 2011. .
Grayzel, Susan R. The First World War: A Brief History with Documents. Boston: Bedford/St. Martin's, 2013. Print.
World War 1 was the first global war. Countries and Nations could no longer sit on the sidelines and do nothing, this namely affected the U.S. Who was for a time neutral and a non-combatant? It saw the rise of air warfare with the first use of bombers and fighter aircraft. What was once a fancy thought, now aircraft could be used to help ground troops to gain ground? Aircraft was also used for reconnaissance, which would give better intelligence for future actions