Mark Twain in The Spanish-American War
Mark Twain (1835–1910) was the pen name for Samuel Langhorne Clemens, an American writer, humorist, and political critic who's best known today for his novels Adventures of Huckleberry Finn and The Adventures of Tom Sawyer. Many consider him to be the greatest writer in American history.
In 1898, several political figures, scholars, and businessmen formed the American Anti-Imperialist League in order to oppose the annexation of the Philippine Islands. Mark Twain was one of its most vocal members.