International organizations affect global politics by facilitating cooperation across countries, addressing issues like security, trade, and human rights. Entities such as the United Nations, World Trade Organization, and NATO provide platforms for dialogue, negotiation, and conflict resolution, enhancing multilateralism. They establish norms and standards that guide international relations, often influencing state behavior. Through programs and initiatives, these organizations can mobilize resources and expertise, tackling global challenges like climate change or pandemics. However, their effectiveness can be hampered by political disputes among member states and varying national interests.