What exactly would you consider to be horrific? World War II was a horrific disaster for all the countries that were involved. The casualties that occurred are a record breaker to this day. A staggering total number of 63,185,500 total deaths and half of them being civilians (Second World War History). World War II was the most horrific war in history.
The origins of World War II are formally from the defeat of the nationalistic Germany from the United Kingdom, United States, France, and Russia from World War I. Also, France was still upset about the fact that they lost Prussia during the Franco-Prussian War in 1870. A new republic was formed and Hitler was now pronounced as Chancellor. He then blamed the cause on the democratic government and those who were financially collected as in the Jewish society. As Hitler gained power he eventually became dictator over Germany, making every decision. This only produced only protest in Britain and France. They were more serious about enforcing the economic provisions of the treaty than its military restrictions. They felt the treaty was too harsh, and Hitler wanted to fix the extremes.
Also the first German conquest was Austria. After Italy had joined the Anti-Comintern Pact, thereby removing the main obstacle of a Anschluss of Austria, Germany announced the annexation on March 12, 1938, making it a German province "Gau Ostmark." Hitler turned his attention to Czechoslovakia. His first order of business was to seize the Sudetenland. British Prime Minister Neville Chamberlain went out of his way with French leaders to appease Hitler, even though the United Kingdom had earlier guaranteed the security of Czechoslovakia. However, the Munich Agreement pact allowed German troops to occupy the Sudetenland.
Full-scale war in Europe began on September 1, 1939, when Germany invaded Poland, to which both Britain and France had pledged guarantees. Poland fell quickly, with her last large operational units surrendering October 5. However, Polish troops continued fighting for the Allies until the end of the war. This showed that even though they went through a horrific time, they still remained loyal to allies.
Hitler moved troops into the Rhineland on March 7, 1936. Under the Versailles treaty, the Rhineland should have been demilitarized, for France wanted it for a buffer between herself and Germany. But, as before, Hitler's defiance was met with inaction. On March 18, 1940, Hitler and Mussolini had agreed to make the Axis Powers' Pact of Steel an alliance against France and the United Kingdom. On May 10, the Phony War ended with a sweeping German invasion of Belgium, the Netherlands and Luxembourg, that bypassed French fortifications along the Maginot Line. Also, this was the beginning to the horrific and devastating Axis powers.
After overrunning these countries, Germany turned against France, entering the country through the Ardennes on May 13. The French had made the fatal mistake of leaving this area...