This inspector general's assassination was a huge factor in the beginning of the first World War
Franz Ferdinand
These gases were used by the Germans
Mustard / Chlorine gas
The assasination of this person sparked the war
Franz Ferdinand
The United States originally followed this policy to avoid getting involved in the war.
Neutrality
World War I was mainly fought on this continent.
Europe
Woodrow Wilson
Mounted with machine guns, this technological advancement helped both sides control the skies.
Airplanes
This system of military agreements caused many countries to be pulled into the war.
Alliances
This German tactic of attacking ships at sea helped push the U.S. toward war.
Unrestricted submarine warfare
This type of warfare used deep ditches and led to long, deadly stalemates.
Trench Warfare
Was Germany's Foreign Secretary during World War I, infamous for sending the secret Telegram in January 1917 and later had the telegram named after him
Arthur Zimmerman
These were used by all forces to go under water during war
Submarines
This intense pride and loyalty to one’s country increased tensions across Europe.
Nationalism
This 1917 telegram promised Mexico U.S. territory if it joined Germany in the war.
The Zimmermann Telegram
This group of countries included Germany, Austria-Hungary, and the Ottoman Empire.
The Central Powers
President of Germany who led German forces in battle
Paul von Hindenburg
Developed by Germans, this boat was a game changer for lots of people in World War one
The U Boat
This belief that building up armed forces would protect nations actually increased fear and competition.
Militarism
This event involved the sinking of a British passenger ship with Americans aboard in 1915.
The sinking of the Lusitania
This American general led U.S. forces in Europe during World War I.
General John J. Pershing
known as the last Emperor of Russia, whose reign (1894-1917) ended with the fall of the Romanov dynasty
Tsar Nicholas II
These were deemed more reliable in war and were often used by the British and French
Armored Tanks
These four long-term causes of World War I are often remembered by the acronym “MAIN.”
Militarism, Alliances, Imperialism, Nationalism
In what year did the United States officially declare war on Germany?
1917
This 1919 treaty officially ended World War I and punished Germany.
The treaty of Versailles