Name one war fought by the United States in the 1900s.

Why this is the answer

Any one of five wars answers this question, because those are the five the United States fought in the 1900s: World War I, World War II, the Korean War, the Vietnam War and the Persian Gulf War. The list is easier to hold if you split it into three groups. First come the two world wars. The first began in Europe in 1914, when it was called the Great War. The country stayed out of it until 1917, three years after the fighting began, and Woodrow Wilson was President during the war. It ended on November 11, 1918, the date the country now keeps as Veterans Day, in honor of the men and women, alive and deceased, who have served in the military. The United States entered the second world war in 1941, after Japan attacked Pearl Harbor, and fought until Japan surrendered in September 1945. Next come two wars in Asia. In Korea, starting in 1950, American forces helped stop the North Korean army after it crossed the 38th parallel into the South; the fighting ended in 1953. In Vietnam, from 1959 to 1975, they backed the government of South Vietnam against the communist North, and almost 60,000 Americans died or went missing. Last comes the short Persian Gulf War. Iraq invaded Kuwait in August 1990, and in January 1991 a coalition led by the United States and authorized by the United Nations drove the Iraqi army out within a month. That leaves an easy count to remember: two world wars, two wars in Asia, one in the Gulf. Where people slip is the century. The War of 1812, the Mexican-American War, the Civil War and the Spanish-American War were all fought in the 1800s. They are correct answers to a different question on the list, the one about wars of the 1800s, and wrong answers here. A quick check before you answer: the American fighting in all five falls between 1917 and 1991, well inside the 1900s.