1. Nationalism:

pride in one’s country

1. Militarism (arms race):

1. a competition between countries to see who can create the most powerful weapons.

1. System of Alliances:

when many alliances are made at the same time.

1. Imperialism:

building an empire by taking over other countries.

1. colonies:

a country or a region whose government is controlled by another distant country.

1. empire:

a group of nations, territories or people ruled by a single authority, especially an emperor or empress

1. trigger:

an event that creates an immediate reaction.

1. cause:

an event or events that over time lead to a reaction.

1. alliance:

an agreement between countries to help each other in time of need.

1. Stalemate:

deadlock, neither side able to defeat the other

1. Total War:

mobilization, refusal to compromise, the blurring of roles between soldier and civilians.