The 1939 invasion of Poland caused Britain to declare war on Germany, which started WWII.
The Germans attacked Poland, this caused England and France to declare war on Germany, so Germany declared war on them.
World War II officially began after Germany invaded Poland. The invasion of Poland caused England and France to declare war on Germany.
Most likely the attacks by Germany (in either world war) against American civilians and American shipping in the Atlantic Ocean.
Answer this question… Germany's pact with Japan caused it to declare war on the United States.
The assassination of Austrian Archduke Ferdinand was the immediate cause of World War I. He was killed by a Serbian terrorist, which caused Austria to declare war on Serbia. Serbia was allied with Russia, who intervened, causing Germany to declare war on Russia, which caused France to declare war on Germany.
There were several events leading up to the US calling for war against Germany. These included the Zimmerman Note, Germany announcing a policy of unrestricted submarine warfare, and the sinking of several American ships.
The US did not declare war on Germany. Germany declared war on the US shortly after the Japanese attack on Hawaii.
The 1939 invasion of Poland caused Britain to declare war on Germany, which started WWII.
the assassination of Austrian arch duke Franz Ferdinand by bosnian nationalists caused austria to declare war on bosnia and russia was allied with them and Germany with austria
world war one was not fought to end anything in particular. it began when a Serbian nationalist shot Archduke Ferdinand of Austria. this caused Austria-Hungary to declare war on Serbia. Russia, which was allied with Serbia, entered the war, and Germany, allied with Austria-Hungary, also entered. France, which was allied with Russia, declared war on Germany. Italy, allied with Germany, entered the war, and Germany marched through Belgium in order to invade France. Britain, allied with Belgium, declared war on Germany and it's allies, and so forth until the participants extended the world over. the US entered the war because of Germany's use of unrestricted U-boat, or submarine, warfare against neutral nation's merchant fleets.
world war one was not fought to end anything in particular. it began when a Serbian nationalist shot Archduke Ferdinand of Austria. this caused Austria-Hungary to declare war on Serbia. Russia, which was allied with Serbia, entered the war, and Germany, allied with Austria-Hungary, also entered. France, which was allied with Russia, declared war on Germany. Italy, allied with Germany, entered the war, and Germany marched through Belgium in order to invade France. Britain, allied with Belgium, declared war on Germany and it's allies, and so forth until the participants extended the world over. the US entered the war because of Germany's use of unrestricted U-boat, or submarine, warfare against neutral nation's merchant fleets.
Poland
It caused Great Britain and France to declare war on Germany.
Belgium .
Germany declared war on France and invaded Belgium. This caused the United Kingdom to declare war on Germany.The time lines of WW1 and 2 can be found in the related links below.
He thought they would never do it. This was because he thought that these two countries would be afraid, broke, and uncertain in knowing Germany's reaction to the countries attacking it. In the end, Germany fell to England and France.