German invasion of Poland 01 Sept 1939
The event that officially marked the end of World War I was the Treaty of Versailles. It was signed in a railroad car on June 28, 1919.
The assassination of Archduke Ferdinand was the one event that pushed Europe over the edge and brought about World War I.
World War Two was a global event, and actually was a combination of several wars. That being said, the accepted start of WWII was Hitler's invasion of Poland in 1939, as it led to the declarations of war by most of the Allied Powers. In the Far East, the Second Sino-Japanese War would merge into the greater conflict. The Japanese, at some level or another, had been at war for most of the 20th Century prior to the "start" of WWII. The start of the Pacific War could be said to have begun with the occupation of Korea, or the Mukden Incident in 1931, or even the Attack on Pearl Harbor in 1941, which brought the U.S. into both parts of the war.
Europe
The violent event in 1914 helped start World War 1 was the assassination of Franz Ferdinand.
Most historians agree that the German invasion of Poland on September 1, 1939, was the event that marked the start of World War 2.
The Germans invaded Poland early on the morning of September 1st, 1939. This was the start of World War II.
France
the start of the Vietnam War
Start of the war, victory in Europe and victory over Japan.
What event marked the start of the French and Indian war
Yes, "World War II" should be capitalized as it is the name of a specific event in history.
It outraged the Austro-Hungarians and caused world war I.
The War started when Adolf Hitler's Nazis Germany invaded Poland.
Germany annexed Austria.
Hitler invaded Poland