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.
Chain of command and military advice Under the Goldwater–Nichols Act, military advice was centralized in the
chairman of the Joint Chiefs of Staff as opposed to the service chiefs. The chairman was designated as the principal military adviser to the
president of the United States,
National Security Council and
Secretary of Defense. The act also established the position of
vice chairman of the Joint Chiefs of Staff and simplified the chain of command. Additionally, the act states that the chairman and vice chairman of the Joint Chiefs of Staff cannot be representatives from the same service branch. It increased the ability of the chairman to direct overall strategy, but provided greater command authority to "unified" and "specified" field commanders. According to the act, the chairman
may not exercise military command over the Joint Chiefs of Staff or any of the armed forces. Section 162(b) of the act prescribes that "unless otherwise directed by the president, the chain of command to a unified or specified combatant command runs— • "from the president to the secretary of defense," and • "from the secretary of defense to the commander of the combatant command".
Interaction of services Goldwater–Nichols changed the way the services interact. The services themselves "organize, train and equip" forces for use by the
combatant commanders (CCDRs), and the service chiefs no longer exercise any operational control over their forces. Rather than reporting to a service chief operationally, the service component forces support the commander responsible for a specific function (
special operations,
strategic,
transportation,
cyber) or a geographic region of the globe (
Northern,
Central,
European,
Pacific,
Southern,
Africa Commands), and
Space. The combatant commanders then field a force capable of employing AirLand Battle doctrine (or its successors) using all assets available to the integrated unified action plan, including the military, interagency organizations of the US Government such as USAID and the Department of State, and intelligence agencies. The restructuring afforded a combination of effort, integrated planning, shared procurement, and a reduction or elimination of inter-service rivalry. It also provided unity of command, conforming with leading
military science. Individual services changed from relatively autonomous war-fighting entities into organizational and training units, responsible for acquisition, modernization, force-development, and readiness as a component of the integrated force. Thus
USCENTCOM (U.S. Central Command), for example, would be assigned air, ground, naval, Marine, space, and special operations assets to achieve its objectives, not the previously less efficient method of individual services planning, supporting, and fighting the same war. This was successfully demonstrated during
Operation Desert Storm in 1991.
Personnel management of officers Another major effect of the Act is the way it has dramatically changed the personnel management of military officers. Many officers are assigned to joint duty positions (occasionally more than once), and are educated in Department of Defense
Joint Professional Military Education (JPME) schools as part of their career development and progression. For example, in order to be competitive for promotion to general or flag officer (admiral) (pay grade O-7 or above/NATO OF-6), active component colonels (pay grade O-6/NATO OF-5) (Army, Marine Corps, and Air Force) or Navy captains must have completed at least one joint duty assignment, as well as having completed (or currently be enrolled in) a JPME school that grants JPME Level II credit.
Shared procurement Shared procurement allowed the various branches to share technological advances such as
stealth and
smart weapons quickly, and provided other ancillary benefits (such as improved interoperability of radios and communications between units and members of different services). Joint implementation of new technology allowed for joint development of supporting doctrine. The Goldwater–Nichols Act could be seen as the initial step of the currently ongoing
Revolution in Military Affairs (RMA) with its concept of
Network Centric Warfare (NCW). ==Changes since 1986==