Program 5 - The Imperial Wars In the fifth program we look at the years 1868 to 1918. With the Civil War over, the call of Manifest Destiny turned Americans westward once more, and very quickly the United States became engaged in its longest running war, The Plains Indians War, from 1868 to 1890. We also see America's brief flirtation with Imperialism, as the U.S. for first time took its growing military might onto the world stage in the Spanish-American War and then again in World War One. 1750- Native American Horse Cultures Dominate the Great Plains 1876- Battle at the Little Big Horn 1890- Battle at Wounded Knee 1898 - Sinking of the Maine 1914 - 1917 - America Prepares for World War I 1917 - America Enters World War I Program 6 - The Global Wars After World War I the 19th century's old balance of power vanished. Once more world domination through military conquest loomed as an actual possibility. In the sixth program, the global wars, we look at the years 1939 to 1953 as America spread it's military across half the planet and took command of the fight against totalitarianism in World War II and communism in the Korean War. 1941 - Japanese Bomb Pearl Harbor 1944 - D-Day "Operation Overlord" 1945 - The Air Force Drops an Atomic Bomb on Hiroshima 1950 - President Truman Sends American Troops to the Aid of South Korea 1950 - 1953 The Korean War