5 Largest Armed Forces in the World Ranked by Active Military Personnel

3. United States

Active Military Personnel: 1,328,000

The United States has the most powerful military in the world, and the third largest ranked by active military personnel. The US Armed Forces comprise six branches: the Army, Navy, Air Force, Marine Corps, Space Force, and the Coast Guard. The influence of the American military stretches far beyond its borders, enabled by over 750 military bases across 80 countries of the world. The US also has about 800,000 of reserve personnel, in addition to the 1.33 million active troops.