Political alliances, often formed through diplomatic agreements, significantly shape international negotiations by providing countries with a collective bargaining power. These alliances can be based on shared interests, such as security or trade, and can influence the outcomes of negotiations in various forums, including the United Nations. For instance, regional blocs like the European Union can enhance member states' leverage over non-affiliated countries. However, alliances can also create tension or divisions, leading to conflicting interests that affect the negotiation dynamics. Ultimately, alliances are vital in determining the balance of power on the global stage.