Who is responsible for maintaining state militia's?

State militias, often referred to as the National Guard, are primarily maintained by state governments. Each state is responsible for organizing, training, and equipping its militia forces, while also adhering to federal regulations and standards. The governor of each state typically oversees the militia, with the ability to call them into active duty during emergencies or for national service. Additionally, the federal government plays a role in funding and supporting state militias through various programs.