Auxiliaries or irregulars are commonly used terms, although irregulars tends to imply combat duties, whereas auxiliaries implied auxiliary functions. For example, the Civil Air Patrol is an auxiliary of the United States Air Force, and performs functions such as a cadet programme, search and rescue, etc, but cannot be called to perform combat duties.
As for actual citizen-soldiers who are uniformed and a component of the regular military force, and subject to activation for combat duties, they're typically just referred to as 'reservists'. In the US, the National Guard has that function (as do State Guard/State Defence Forces), whereas Commonwealth nations tend to refer to them as the Territorial Army, although they're more commonly known as 'The Militia' in Canada.
Additionally, irregular forces composed of civilians, and with a paramilitary function, have played a role in conflicts throughout the world.
The act that was passed to improve and increase national defense on 1956 was the National Defense Education Act, or NDEA. It was inaugurated by President Dwight Eisenhower, and it aimed to increase technical sophistication and power of the US.
The National Defense Act of 1916 was signed in by Woodrow Wilson on June 3, 1916 to create new military programs such as the Junior Reserve Officers Training Corps (JROTC) and the ROTC (Same thing, just a collage program...) and make larger numbers of national guard while preparing troops for war. It was signed in as a tool to help recruit more soldiers in a time of crisis, WWI.
from the British quartering soldiers in the homes of the colonists
Soldiers often fight more intensely in defense of their native soil.
The National Defense Act of 1916 was signed in by Woodrow Wilson on June 3, 1916 to create new military programs such as the Junior Reserve Officers Training Corps (JROTC, jrotc.org) and the ROTC (Same thing, just a collage program...) and make larger numbers of national guard while preparing troops for war. It was signed in as a tool to help recruit more soldiers in a time of crisis, WWI.
National defense is a public good, meaning it must be supplied to all citizens. It functions to protect all citizens within a country from threats coming in from without. It is the first and most important function granted to the national government. Without national defense a country cannot defend itself from foreign threats and would fail as a state.
The national defense education act allocated federal funds to train military soldiers
National defense deals with the protection and security of a nation's territory, citizens, and interests from external threats and aggression. It involves maintaining a military force, developing defense strategies, and deploying resources for the defense of the country. National defense is crucial for ensuring the sovereignty and safety of a nation.
Arlington National Cemetery is administered by the Department of the Army National Cemeteries, a part of the Defense Department of the U.S. federal government.
The United States needs national security to protect citizens from threats that may be unknown to them. Terrorists are a big problem, and without national security, many people could die if the United States is attacked.
National defense is the job of the federal government.
National Defense - Poland - was created in 1936.
In Defense of the National Interest was created in 1951.
Council of National Defense was created in 1916.
Council of National Defense ended in 1921.
The Myth of National Defense was created in 2003.
National Defense University was created in 1976.