Militia groups are organized, armed groups that are often formed by civilians to provide defense or security in their communities. They may operate independently or in conjunction with local law enforcement and can vary widely in their beliefs, goals, and levels of organization. Some militia groups focus on community safety, while others may have political or ideological motivations. In the United States, militia groups have a historical context dating back to the colonial era, where local militias were essential for defense. Today, some groups may advocate for issues related to Second Amendment rights or government overreach, while others may engage in training exercises or community outreach.