Nations started looking for allies to do this in case of conflict.
Protect themselves
Who joined the war after Germany attacked Belgium?
Britain
What treaty ended World War I and reshaped alliances in 1919?
Treaty of Versailles
What were the two main alliances in WW1?
The Allied Powers, and The Central Powers
The assassination of this figure directly triggered Austria-Hungary to declare war on Serbia.
Archduke Franz Ferdinand
These two alliance systems divided Europe into opposing sides before the war began.
The Triple Alliance and the Triple Entente.
What country betrayed the triple alliance?
Italy
What happened to old alliances after the Treaty of Versailles?
They dissolved.
What WW1 motive was a promise of friendship
Alliances
Alliances pulled nations into fighting even when they weren't directly involved, leading to this major effect.
The expansion of the war into a world war.
What was the first country that Austria-Hungary asked to be their alliance
Germany
Who came to Serbia’s defence when they got attacked by Austria-Hungary?
Russia
Around how many nations were drawn into WWI because of the alliance system?
About 30 nations.
Which countries were composed of the triple alliance?
Germany, Austria–Hungary, and the Ottoman Empire
What happened after Austria-Hungary declared war on Serbia in July 1914?
Russia mobilized to defend Serbia, leading to Germany declaring war on Russia and France, and Britain declaring war on Germany.
What year were the triple alliances formed?
1907
What alliance joined the allies, and what alliance joined the central powers during the beginning of WW1?
Japan —> allies.
Ottoman Empire —> central powers.
What happened to the Central Powers at the end of the war in 1918?
They collapsed
Which countries made up the triple entente?
Great Britain, France, and Russia
What was Germany’s action that caused Britain to enter the war?
Germany invaded Belgium.
Tensions began rising between European categories because they were competing for what 3 things?
Colonies, military strength, and influence.
Instead of preventing war, alliances had this effect because nations were locked into agreements they couldn’t back out of.
Guaranteeing war.
Which country exited the war in 1918 with the Treaty of Brest-Litovsk, shifting the alliances?
Russia
Alliances made nations feel stronger by providing what three things?
Protection, security, and a balance of power.
What secret message pushed the United States to join the war in 1917?
The Zimmermann Telegram