In both instances the intervention of the United States was the culminating event. Bush Finished What Reagan Started in Ending the Cold War Ronald Reagan may have spearheaded the build-up that led to the demise of the Soviet Union, but George H.W. Between 1895 and 1898 Cuba and the Philippine Islands revolted against Spain.The Cubans gained independence, but the Filipinos did not. The Spanish-American War by David Trask. How George H.W.