The National Guard is a reserve component of the United States Armed Forces. It is composed of two distinct components: the Army National Guard and the Air National Guard. The Army National Guard is composed of soldiers who are trained and organized for land warfare. The Air National Guard is composed of airmen who are trained and organized for air warfare.

The National Guard is a state-based force. Each state has its own National Guard, which is commanded by the governor of that state. However, the National Guard can be federalized by the President of the United States in times of war or national emergency.

When the National Guard is federalized, it becomes part of the active-duty military. National Guard soldiers and airmen are then subject to the same laws and regulations as other members of the military. They can be deployed anywhere in the world, and they can be required to serve for up to 24 months.

The National Guard plays a vital role in the defense of the United States. It provides the military with a ready source of trained and experienced personnel. It also helps to maintain a strong relationship between the military and the civilian community.

Here are some of the key differences between the National Guard and the Army:

* The National Guard is a state-based force, while the Army is a federal force.

* The National Guard can be federalized by the President, while the Army is always under federal control.

* National Guard soldiers and airmen are subject to different laws and regulations than other members of the military when they are not federalized.

* National Guard soldiers and airmen can serve for up to 24 months when they are federalized, while other members of the military can serve for up to 36 months.