"Cuba revolt: February 1898 to February 1899
Cuban nationalists revolt against Spain, following other colonies who broke away from the failing empire in the 19th century. The United States, driven by a mix of expansionism and the desire to help another colony win independence, inches closer to intervention, until a US warship explodes in Havana harbor.
The US declares war against Spain and American forces, led in part by future president Teddy Roosevelt, invade Cuba. Spain is forced to release the island and cede Puerto Rico and the Philippines. The US military continues to intervene in Cuban affairs until 1934, and continues to dominate trade with the island until 1953."