OMDP says
The Militia as mentioned in the constitution has not been used in war time for nearly 200 years for a reason
This statement is wrong.
In Maryland, the most recent use of Minutemen (militia) was for local security during WWII. On March 10, 1942, Maryland Governor Herbert L. O’Conor called for volunteers who will furnish their own weapons in a radio address saying, in part:
I propose to meet this need by the organization in every part of the
State of a Reserve Militia. The completed plan has just been approved
by General Reckord, as Commander of the Third Army Corps. It offers the
opportunity for every able-bodied man to assist in protecting his home
and his community against enemy activities. The militia will be organized
under our State Law, and the men who enlist at this time of our grave
emergency will be known as the "Maryland Minute Men."
The mission of the Maryland Minute Men is to furnish immediately, local
protection against parachute troops, saboteurs, or organized raiding
parties. It is planned that the units be confined to their own
communities so that there will be assurance at all times that every
residential section of Maryland will have protection.
No prescribed complete uniform will be required. Distinctive arm bands
and caps or other items may be furnished by the State, the County, or
by the men themselves. For the present the hard-pressed Ordinance
Department of the United States Army cannot be expected to furnish
sufficient arms, ammunition, or equipment. Hence, the volunteers, for
the most part, will be expected to furnish their own weapons. For this
reason, gunners (of whom there are 60,000 licensed in Maryland), members
of Rod and Gun Clubs, of Trap Shooting and similar organizations, will
be expected to constitute a part of this new military organization.
The text of the full address may be found in the
Archives of Maryland Online, Volume 409, Page 616.
The militia function is defined in the Maryland Constitution and recognized in an
opinion even by anti-gun Attorney General Joseph Curran, Jr.
Less than 200 years ago a largely militia army defeated a professional army of Great Britain in the battle of New Orleans.
Our army in the war with Mexico had significant militia components.
Lincoln called up the militia for a limited service to suppress the rebellion of Southern States. That call, issued on April 15, 1861,
called for 75,000 men in conformity with the Militia Act of 1795 which authorized the President to call out the Militia whenever the laws of the United States were opposed by "combinations too powerful to be suppressed by the course of ordinary judicial proceedings." It was Lincoln's call for the militia and the threat of violence offered that propelled Virginia and three other states to secede.
Confederate armies were initially built from state militias. Freed slaves comprised militias in former Confederate states to maintain the power of Republican Reconstruction governments.
Militias were used in the Spanish-American War and one ship, U.S.S. Yossemite, was staffed by naval volunteers except for officers. The Yossemite was a converted cargo ship to which steel plates and guns had been added.