Militant groups are organizations that use violence or armed conflict to achieve political, ideological, or social goals. They often operate outside of traditional military structures and may engage in guerrilla warfare, terrorism, or other forms of direct action. These groups can vary widely in their motivations, ranging from nationalist movements to religious extremism. Many militant groups are involved in ongoing conflicts and may seek to challenge government authority or influence public policy. Some well-known examples include Hezbollah, ISIS, and the Taliban. These groups can have significant impacts on regional stability and international relations.