The Anschluss.
They didn't invade Germany. That was where it all started. Hitler was appointed to head and took over from there and started taking over other countries to gain more influence and power. He was a dictator through and through.
Austria-Hungary
Yes, Austria was essentially absorbed into the Third Reich though.
Austria-Hungary declared war on Serbia at the start of World War I.
France
Austria. They had been allies in WW1, but the Treaty of Versailles forbade their union after World War I.
The forbidding of a union with Austria refers to the prohibition against the unification of Germany and Austria, primarily established by the Treaty of Versailles and later reinforced by the Treaty of Saint-Germain after World War I. This was part of the Allied powers' efforts to prevent the resurgence of a powerful German Empire that could threaten European stability. The principle of self-determination and the desire to maintain a balance of power in Europe were also key factors. Ultimately, this prohibition was a significant factor in the political dynamics leading up to World War II.
The Anschluss.
Austria-Hungary did not exist after the First World War. Hitler acquired Austria as part of his expansion in Europe quiet early on, it was legalised through a referendum in Austria which saw 99% of the country vote for a union with Germany, or at least that's what the official papers said at the time.
Austria Hungary did not become one nation after World War 1.
From 1938 till 1945 Austria was a part of Germany, as it was annexed in March, 1938.
There was no Austria-Hungary after WWI it was broken up after the first world war
The treaty of Versailles
It was a World War because a man killed the archduke of Austria-Hungary in Sebia. Austria-Hungary declared war on Serbia. Serbia had an alliance with Russia and then Russia joined the war. Russia was in the Triple Entante and pulled Britain and France into the war. Austria-Hungary had alliances with Germany and the Ottoman Empire. They also joined the war. That is why World War I was a world war.
They didn't invade Germany. That was where it all started. Hitler was appointed to head and took over from there and started taking over other countries to gain more influence and power. He was a dictator through and through.
No, World War II was not solely between Germany and Austria. Austria was annexed by Nazi Germany in 1938, becoming part of the German Reich before the war began. The conflict involved many nations, primarily the Allies (including the United States, Soviet Union, and the United Kingdom) against the Axis powers led by Germany, Italy, and Japan. Austria, as part of Germany at that time, was involved in the war through the actions of the Nazi regime.