Alliances among countries significantly influence global stability by creating frameworks for cooperation, security, and economic partnerships. These alliances can deter aggression and facilitate conflict resolution, as nations work collaboratively to address mutual interests and threats. Multilateral organizations, such as the United Nations or NATO, exemplify how countries can come together for collective security and global governance. However, the dynamics of these alliances can also lead to tensions and conflicts if interests diverge, underscoring the importance of diplomacy in maintaining international peace.