Puerto Rico National Guard

The Puerto Rico National Guard (Spanish: Guardia Nacional de Puerto Rico) is the component of the United States National Guard in the U.S. Territory of Puerto Rico. It comprises both Army and Air National Guard components with a total authorized strength of 10,000 soldiers and airmen. The Constitution of the United States specifically charges the National Guard with dual federal and state missions. The National Guard is the only United States military force empowered to function in a state status. Those functions range from limited actions during non-emergency situations to full-scale law enforcement of martial law when local law enforcement officials can no longer maintain civil control. The National Guard may be called into federal service in response to a call by the President or Congress, usually at the request of the governor of the state. When under state/Territory control, the Governor serves as Commander-In-Chief.

When National Guard troops are called to federal service, the President serves as Commander-In-Chief. The federal mission assigned to the National Guard is: "To provide properly trained and equipped units for prompt mobilization for war, National emergency or as otherwise needed."

The Governor of Puerto Rico may call individuals or units of the Puerto Rico National Guard into state service during emergencies or to assist in special situations in which National Guard use is appropriate. The state mission assigned to the National Guard is: "To provide trained and disciplined forces for domestic emergencies or as otherwise provided by state law."