United States invasion of Panama
The Goldwater–Nichols Act brought sweeping changes to the way the U.S. military forces were organized. The first successful test of Goldwater–Nichols was the 1989 United States invasion of Panama (code-named Operation Just Cause), where it functioned exactly as planned, allowing the U.S. commander, Army General Maxwell Reid Thurman, to exercise full control over Marine Corps, Army, Air Force and Navy assets without having to negotiate with the individual services.