A - Alliances - Support by one country for another. Problems between two nations quickly involve other nations.
I - Imperialism - As countries secured territories for resources and trade, it increased tension with other nations.
N - Nationalism - Pride in one's nation. This increased tensions between regions in Europe.
Archduke Franz Ferdinand was assassinated by-Serbian nationalist.
Because of alliances, more than 20 nations were instantly drawn into war!
Heeding President Washington's advice, the United States remained neutral. President Wilson believed involving the United States would have a negative impact on American lives and the American economy.