In the United States, state defense forces (SDF) are military units that operate under the sole authority of a state government. State defense forces are authorized by state and federal law and are under the command of the governor of each state.
A naval militia is a reserve military organization administered under the authority of a state government in the United States. It is often composed of reservists of the Navy Reserve, Marine Corps Reserve, and Coast Guard Reserve, retirees and volunteers. They are distinguishable from the U.S. Coast Guard Auxiliary which is a federally chartered civilian volunteer component of the U.S. Coast Guard and falls under the command of the Commandant of the Coast Guard through the Chief Director of the Auxiliary, and the United States Maritime Service and United States Merchant Marine, both of which are federal maritime services.
The Wisconsin State Defense Force (WSDF) is the currently inactive state defense force of the State of Wisconsin authorized by Wisconsin law. As a state defense force, the Wisconsin State Defense Force, alongside the Wisconsin National Guard, is organized under the Wisconsin Department of Military Affairs as a part of the military forces of Wisconsin. However, unlike the National Guard, the State Defense Force is a purely state-controlled organization and cannot be deployed outside the state of Wisconsin. When any part of the Wisconsin National Guard is called into service of the United States, the adjutant general may recruit volunteers to the WSDF to serve within the borders of Wisconsin.
The Utah Air National Guard (UT ANG) is the aerial militia of the State of Utah, USA. Along with the Utah Army National Guard it is an element of the Utah National Guard.
The Washington State Guard is the state defense force of the U.S. state of Washington. It is an element of the state's military forces which also include the Washington Army National Guard and the Washington Air National Guard.
The Arkansas State Guard was the official state defense force of the state of Arkansas during World War II. The Arkansas State Guard was created to fulfill the state missions of the Arkansas National Guard while the National Guard was deployed abroad during World War II. As a military unit trained and funded solely by the state, it was immune to federal activation and deployment, unlike the National Guard. As a part of the official militia of the state of Arkansas, it traces its roots back to the militias which fell under state authority prior to the Militia Act of 1903. The Arkansas State Guard is currently inactive following deactivation after the end of World War II; however, the legal framework for a state defense force still exists, making future reactivation of the Arkansas State Guard by the Arkansas General Assembly legally permissible.
The Kansas State Guard was the official state defense force of the state of Kansas during each of the world wars. The unit was first created during World War I, and was later reactivated during World War II. When the Kansas National Guard was federalized and deployed during each of the world wars, the state of Kansas was forced to raise and maintain its own military force in order to protect against saboteurs, quell riots, and perform other duties which would normally fall to the National Guard. Unlike the National Guard, which could be federalized and deployed abroad, the State Guard was funded and equipped solely by the state and as such was immune to deployment. The Kansas State Guard is authorized under Kansas law. In 2007, the Kansas Legislature considered a bill which would create a modern Kansas State Defense Force. The bill did not pass.
The Florida State Guard (FSG) is the state defense force of the U.S. state of Florida. The FSG was created in 1941 to serve as a stateside replacement for the Florida National Guard while the National Guard was deployed abroad during World War II. The FSG is available to the governor of Florida whenever needed, but unlike the National Guard, the FSG is trained and funded by the state and therefore can not be federalized. The FSG was reactivated in 2022 after the Florida legislature appropriated US$10 million in funding.
The Delaware State Guard is the currently inactive state defense force of the state of Delaware, which was active during both World War I and World War II. As the official militia of the state, the Delaware State Guard was created with the intent of acting as a stateside replacement for the Delaware National Guard while the National Guard units were deployed abroad.
The Pennsylvania State Guard is the currently inactive official state defense force of the state of Pennsylvania, which was active during World War II and the Korean War. The unit was organized as a home guard composed of volunteers who were trained and organized as parallel to the state’s National Guard. As a part of Pennsylvania's official militia, the Pennsylvania State Guard was trained, organized, and funded by the state of Pennsylvania, answered to the governor, and could not be federalized or deployed abroad.
The Florida Naval Militia was the official naval militia of the state of Florida. Naval militias were organized as naval parallels to the National Guard as dual federal and state obligations, with the naval militias normally being under state control but subject to federal activation. The Florida Naval Militia was active during three periods in Florida history: between 1897 and 1903; between 1911 and 1917; and between 1934 and 1941.
The Hawaii Territorial Guard was the state defense force of Hawaii during World War II. As a result of the National Guard of Hawaii being federalized for the duration of the war, the Hawaii Territorial Guard was created to serve as the stateside replacement for the National Guard. During the war, it was the sole military force available to the Governor of Hawaii as its captain general to use in defense of the state. Unlike the National Guard, as a state defense force, the Hawaii Territorial Guard was not subject to federalization or deployment outside of the borders of Hawaii, but rather answered only to the governor.
The Nebraska State Guard (NSG) is the currently inactive state defense force of the state of Nebraska, which was activated during both World War II and the Vietnam War. As a state defense force, the NSG served on as a component of the organized militia of Nebraska, serving as reservists who trained periodically but could be called up during an emergency; however, unlike the Nebraska National Guard, the Nebraska State Guard could not be federalized or deployed outside the state. Rather, when the National Guard was deployed, the purpose of the State Guard was to assume the stateside duties of the National Guard.
The Louisiana State Guard (LSG) is the official state defense force of the state of Louisiana. The LSG was first created during World War II. As a state defense force, the LSG is a part of the state militia of Louisiana, and can serve as a stateside replacement of the Louisiana National Guard while the National Guard is deployed. Unlike the Louisiana National Guard, the Louisiana State Guard is solely under state control, and cannot be federalized or deployed outside of Louisiana, guaranteeing additional soldiers will always be available to the governor to deploy in response to crises.
The Maine State Guard was the state defense force of the state of Maine during World War I, World War II, and the Vietnam War. As a state defense force, the State Guard served as a stateside replacement for the Maine National Guard when the National Guard was federalized. Like the National Guard, the State Guard was a reserve military force composed of members who held full-time civilian jobs and periodically met for drills, unless called into active service by the governor. However, unlike the National Guard, as a state defense force, the Maine State Guard was solely a state military force, which was immune from federalization and could not be deployed outside the State of Maine.
The South Carolina Naval Militia (SCNM) is the naval militia of the state of South Carolina. The SCNM is a naval unit organized at state level and primarily composed of Navy and Marine Corps reservists who serve simultaneously as federal and state level reservists. The SCNM can be deployed by the Governor of South Carolina to assist in emergency response or in homeland security operations.
The New Hampshire State Guard (NHSG) is the currently unorganized state defense force of New Hampshire. The purpose of the State Guard is to augment or replace the New Hampshire National Guard by assuming the National Guard’s stateside duties when any part of the National Guard is federalized. However, unlike the National Guard, the State Guard is a purely state-level military force which cannot be federalized or deployed outside the state of New Hampshire. The NHSG is a component of the organized militia of New Hampshire.
The South Dakota State Guard is the currently inactive state defense force of South Dakota. The State Guard is recognized as a military force separate from the South Dakota National Guard. Unlike the National Guard, the State Guard is a purely state-level military force under the command of the Governor of South Dakota, and cannot be federalized or deployed outside the borders of the state. The South Dakota State Guard was active during World War I, World War II, and the Vietnam War and provided military protection to the state of South Dakota while the National Guard was in federal service.
The Rhode Island State Guard is the currently inactive state defense force of Rhode Island. As a state defense force, the Rhode Island State Guard served as a state military unit which assumed the stateside duties of the Rhode Island National Guard when the National Guard was in federal service. However, unlike the National Guard, the State Guard, when organized, answers solely to the Governor of Rhode Island and by law cannot be federalized or deployed outside the borders of Rhode Island.
The New Jersey State Guard, previously known as the New Jersey State Militia, is the inactive state defense force of New Jersey, and is one of New Jersey's authorized military forces. The State Guard served as the stateside replacement for the New Jersey National Guard during World War I and World War II when the National Guard was deployed abroad.
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