Political map of North America & the Caribbean 23 May 1900 (Thousand Days' War): The Spanish-American War gave the US an empire in the Caribbean and the Pacific and marked its emergence as a Great Power The first crisis of this period was in Colombia, where the ruling Conservative Party's rigging of elections and suppression of the Liberal Party triggered a revolt in 1899. Although the Conservatives won this Thousand Days' War (Thousand Days War) in 1902, resentment remained in much of the country.