The United States Army has made the sacrifices that keep our nation free. Since its humble beginnings, it has grown, through lean times and flush, to become the premier fighting force in the world. It is the oldest and most senior branch of the U.S. military in order of precedence. And today is the Army’s birthday!

Army History 

The U.S. Army began its life as the Continental Army before the United States of America was established as a country. What is now the U.S. Army was created by the Second Continental Congress on June 14, 1775, in order to fight the British during the American Revolution. The Battle of Lexington and Concord with the “shot heard ’round the world” had taken place just weeks earlier. The Battle of Bunker Hill, where the upstart colonist militias showed they could hold their own against the British military, would take place just three days later on June 17, 1775. So, yes, the U.S. Army is actually older than the United States itself. 

U.S. Army troops during the Revolutionary War. (History.com)

After the defeat of the British at Yorktown and the United States’ independence, the United States and Great Britain would fight against each other again during the War of 1812. (Now, the two countries are the closest of allies having fought together during World Wars I and II, Korea, and the Global War on Terror.)

As the U.S. began its expansion westward, the Army was responsible for mapping nearly all of the territory and protecting American interests and citizens as they moved into new territories. 

U.S. troops from the 23rd Ohio Color Guard during the Civil War.

The Civil War that took place from 1861-1865 was the costliest war fought in our nation’s history. Over 600,000 men on both sides lost their lives. Much of the South was destroyed during the war, but eventually, all of the southern states were readmitted to the Union. 

During further westward expansion, the Army continued to protect U.S. citizens and in many cases not only contained by broke treaties made with Native American tribes. 

The U.S. entered World War I in 1917 on the side of the Triple Entente against the Central Powers. After the bloody conflict was over, America decided to downsize its military to minuscule numbers and by 1939, the U.S. had the 17th-sized army in the world, smaller than that of Portugal. 

U.S. soldiers of the 23rd Infantry, 2nd Division, firing a 37mm machine gun at a German position in the Argonne Forest, during the Meuse-Argonne offensive, 26 September – 11 November 1918. (U.S. Army Signal Corps)

By the time World War II broke out, the Army was woefully unprepared, undermanned, and with little modern equipment.  General George C. Marshall went about putting together a tremendous expansion of both manpower and equipment. In an outstanding display of organizational skill, Marshall took an army of about 175,000 men and by WWII’s end had over 11 million men under arms. The Army was able to fight a war on two fronts, from North Africa, Italy, France, Belgium, Luxembourg, Germany, and Czechoslovakia in Europe, and across the Pacific where it was even preparing for an invasion of the  Japanese mainland.