(A) America annexing Hawaii
(B) Spain annexing Puerto Rico
(C) ** Cuban people being placed into concentration camps
(D) ** The U.S.S. Maine sinking
EXPLANATIONS BELOW
Concept note-1: -On February 15, 1898, an explosion of unknown origin sank the battleship U.S.S. Maine in the Havana, Cuba harbor, killing 266 of the 354 crew members. The sinking of the Maine incited United States’ passions against Spain, eventually leading to a naval blockade of Cuba and a declaration of war.
Concept note-2: -The reasons for war were many, but there were two immediate ones: America’s support the ongoing struggle by Cubans and Filipinos against Spanish rule, and the mysterious explosion of the battleship U.S.S. Maine in Havana Harbor.
Concept note-3: -In 1898, a U.S. Navy board of inquiry ruled that the ship had been sunk by an external explosion from a mine. However, some U.S. Navy officers disagreed with the board, suggesting that the ship’s magazines had been ignited by a spontaneous fire in a coal bunker.