The U.S. declared war on Germany in April 1917 and fought until the Armistice of November 11, 1918.
From the attack on Pearl Harbor to Japan's formal surrender aboard the USS Missouri.
U.S.-led UN forces defended South Korea; fighting ended with the Korean Armistice Agreement.
Thirteen-day standoff between the U.S. and Soviet Union over nuclear missiles in Cuba.
From the Gulf of Tonkin Resolution to the withdrawal of the last U.S. combat troops.
Operation Desert Shield and Desert Storm liberated Kuwait from Iraqi occupation.
America's longest war, from the post-9/11 invasion to the final withdrawal from Kabul.
From the invasion of Iraq to the departure of the last U.S. troops.