In the months following the Spanish-American War, the winds of expansionism blew strongly across the United States. There was a lot of talk about "Manifest Destiny," and many people suggested that America should assume its role as a world power. In Congress, legislators called for the annexation of all Spanish territories. Some newspapers even suggested the annexation of Spain itself. Expansionists such as Roosevelt, former President Harrison, and Captain Mahan argued for creating an American empire. Others, including Grover Cleveland, Andrew Carnegie, and Mark Twain, opposed these ideas.
The second half of the 20th century also witnessed a strong anti-war presence in other art forms, including anti-war music such as " Eve of Destruction " and One Tin Soldier and films such as M*A*S*H and Die Brücke , opposing the Cold War in general, or specific conflicts such as the Vietnam War . The current American war in Iraq has also generated significant artistic anti-war works, including filmmaker Michael Moore 's Fahrenheit 9/11 , which holds the box-office record for documentary films, and Canadian musician Neil Young 's 2006 album Living with War .