Alliances are agreements between two or more parties to work together for mutual benefit. These partnerships can occur in various contexts, such as politics, business, or military. For example, countries may form alliances to enhance security or trade, while companies might collaborate to share resources and expertise. In international relations, alliances often involve treaties that outline the responsibilities and support each member will provide. A well-known example is the North Atlantic Treaty Organization (NATO), which is a military alliance formed to ensure collective defense among its member countries. Alliances can strengthen relationships and provide stability in uncertain situations.