This form of warfare involved digging valleys into the field to avoid your body being vulnerable during battle
Trench warfare
This country was forced to join the war due to being invaded by Germany
Belgium
This cause for the war relates to the stockpiling of weapons and buildup of armed forces across nations
Militarism
This was America's stance during the beginning of the war due to its citizens being sympathetic towards both sides
Neutrality
The Zimmerman Note
These were promoted as a way for food production to go to soldiers rather than American households
Victory Gardens
This nation joined after a German u-boat sunk one of its passenger ships
USA
This is the formation of mutual-defense unions to preserve the balance of power
Alliances
This was the year America officially entered the war and the president in office at the time
1917; Woodrow Wilson
This group of people earn suffrage in 1919, partially due to their aid during the war
White women
These are advertisements and media that aimed at persuading Americans to continue the war
Propaganda
This country formed a blockade on Germany that resulted in the starvation of the German population
Britain
This reason refers to the competition among nations to gain more land and resources
Imperialism
This law enabled the American government to use a lottery system to draft people into the war
The Selective Service Act
This is the main reason Russia dropped out of the war
The Bolshevik Revolution
This is a type of aircraft created by the Germans to use as scouting or to drop bombs
Zeppelins
This nation was initially fighting Germany on the Eastern Front during the War, before dropping out due to Civil War
Russia
This is the belief that a person's ethnic group is superior to other ethnic groups
Nationalism
This industry saw an increase in production as a need for the war, leading to labor changes and promotion of unions in their field
Shipyard workers and ship builders
These are the key points of the Treaty of Versailles
Germany is demilitarized, Germany must pay 33 million dollars in reparations, formation of the League of Nations
This is a soldier in the war who refuses to fight based on moral grounds
Conscientious objector
This country was being colonized by Austria-Hungary, leading to the assassination of their heir apparent
Serbia
This man assassinated Archduke Franz Ferdinand and his wife Sophie, effectively jumpstarting WWI
Gavrilo Princip
This was the reason the US did not include itself in the League of Nations, despite being created by its president
The US did not want to involve itself in European conflicts, citing Monroe Doctrine
These are the three reasons Germany agreed to a ceasefire and surrender
Mutiny of its naval forces, civilian uprisings, lack of resources