books.google.com.ph - America's adventure into colonialism began with the destruction of the U.S. battleship "Maine" in 1898, presumably by a Spanish mine. The four month war against Spain that followed--the shortest declared war in U.S. history--resulted in the U.S. acquisition of the Philippines, Puerto Rico, and Guam....http://books.google.com.ph/books/about/Encyclopedia_of_the_Spanish_American_War.html?id=JMRwK4ng_zYC&utm_source=gb-gplus-shareEncyclopedia of the Spanish American War and Phillippine-American Wars
