What is nationalism?
This feeling of strong pride in one’s country helped increase tensions in Europe.
What is the assassination of Archduke Franz Ferdinand?
This 1914 assassination started WW1.
What is a stalemate?
Fighting from trenches led to this type of deadlock.
What is neutrality?
At the beginning of WW1, the U.S. followed this policy of staying out of the war.
What is an armistice?
This term means an agreement to stop fighting.
What is militarism?
This buildup of armies and weapons made countries more prepared for war.
What is Austria-Hungary?
This country declared war on Serbia after the assassination.
What is the machine gun?
This weapon fired rapidly and made attacks deadly.
What is the Lusitania?
This British passenger ship was sunk by Germany in 1915.
What are the Allied Powers?
This group included Great Britain, France, and Russia.
What is the alliance system?
This system caused countries to defend each other and expand the war.
What is Germany?
This country invaded Belgium to attack France quickly.
What is poison gas?
This chemical weapon caused choking and blindness.
What is the Zimmermann Telegram?
This telegram tried to get Mexico to fight the U.S.
What are the Central Powers?
This group included Germany, Austria-Hungary, and the Ottoman Empire.
What is imperialism?
This competition for colonies increased conflict between European nations.
What is the Schlieffen Plan?
This plan was Germany’s strategy to avoid fighting a two-front war.
What are tanks?
These armored vehicles were used to cross trenches.
What is unrestricted submarine warfare?
This policy by Germany led to attacks on U.S. ships.
What is No Man’s Land?
This zone between trenches was very dangerous to cross.
What is M.A.I.N.?
These four MAIN causes are often remembered by this acronym.
What is the First Battle of the Marne?
This battle stopped Germany’s quick advance into France.
What is unrestricted submarine warfare?
This new form of warfare used submarines to attack ships.
What is 1917?
This year the United States officially entered WW1.
What is propaganda?
This propaganda tool was used to influence public opinion during the war.