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Expansionism is defined as a policy to increase a country's size by expanding its territory -
Alfred Thayer Mahan was a United States naval officer and historian -
Sanford Ballard Dole was a lawyer and jurist from the Hawaiian Islands -
General of the Armies John Joseph Pershing GCB, nicknamed "Black Jack", was a senior United States -
Alvin Cullum York, also known as Sergeant York, was one of the most decorated United States -
The Spanish–American War was a period of armed conflict between Spain and the United States -
made by A French company headed by Ferdinand, viscount de Lesseps, because it needed to lower the distance, cost, and time it took for ships to carry cargo between the Atlantic and the Pacific Oceans -
the assassination of Archduke Franz Ferdinand of Austria-Hungary
Militarism, Alliances, Imperialism and Nationalism. -
Germany's resumption of submarine attacks on passenger and merchant ships