The United Stated modern Army branch is the oldest branch of the Armed Forces with direct roots to the original Continental Army formed in the mid 1770s by the Continental Congress and George Washington himself. Back in those days, the Army consisted of frontiersmen fighting for their home and right to freedom from British tyranny.
From that successful beginning, the Army stood united and proud for almost a century through the Barbary Wars, the War of 1812, and the Mexican-American War. In the early 1860s, like with the rest of the country, the Army was torn in two by the Civil War. For the first two years of the Civil War, the Confederate Army solidly defeated the US Army until the Battle of Gettysburg in which the US Army was again the victor. Records show that during those five bloody years 8% of all white males between 13 and 43 years old died. A mere 6% from Union forces and an astonishing 18% from the Confederate side.
Wars, 'peace keeping missions', etc the Army has been a part of include: Continental War, Barbary Wars, War of 1812, Mexican-American War, Civil War, Spanish-American War, World War I, World War II, Cold War, Korean War, Vietnam War, Panama, Grenada, Gulf War, Somalia, Yugoslavia, Afghanistan, and Iraq.
In the mid 1990s, the official Army Core Values were adopted LDRSHIP:
To all the men and women who've chosen to serve in this distinquished branch, thank you for your sacrifice. For those who lost their lives as a result of that service, they will never be forgotten. Everytime another soldier boots up, they're thinking of those who've gone before. Everytime a civilian sees the flag wave, the memory of those lost is there. Thank you.