The attack on Pearl Harbor
The Germans had been slowly building up their military after the fall of the Weimar Republic; their invasion of Poland in 1939 was probably the most immediate cause of the world war.
The German invasion of Poland in 1939.
The assassination of Archduke Franz Ferdinand.
World War I had 4 long-term causes and one immediate cause. The assassination of the Austro-Hungarian archduke was the immediate cause, the reason war was justified enough to actually begin. The other four are the MAIN causes of the war, Miliatariam, Alliances, Imperialism and Nationalism.
The main cause of world war 1 was all of the alliances nations made. It was also because Archduke Franz Ferdinand was assassinated by a terrorist.
The Germans had been slowly building up their military after the fall of the Weimar Republic; their invasion of Poland in 1939 was probably the most immediate cause of the world war.
the Zimmermann note
The immediate cause of British entry into the First World War was Germany's invasion of Belgium on August 4, 1914. Britain had a longstanding treaty obligation to protect Belgian neutrality, which was violated by the German military campaign. Consequently, the British government issued an ultimatum to Germany to withdraw its troops from Belgium, and when Germany failed to comply, Britain declared war on Germany. This decision was also influenced by concerns over maintaining the balance of power in Europe.
The German invasion of Poland in 1939.
One of the cause of America entry into World War One was the announcement by Germany that there was unrestricted submarine warfare. The effect of America's entry is that it sped the end of the war.
The Japanese attacked Pearl Harbor December 7, 1941.
The immediate cause of the first revolution in March 1917 was the disastrous impact of the First World War.
Economic gain.
The assassination of Archduke Franz Ferdinand.
World War I had 4 long-term causes and one immediate cause. The assassination of the Austro-Hungarian archduke was the immediate cause, the reason war was justified enough to actually begin. The other four are the MAIN causes of the war, Miliatariam, Alliances, Imperialism and Nationalism.
russia dropped out the war
That was the Archduke Franz Ferdinand.