Which part of the United Nations mainly works to keep peace and solve disputes between countries? the World Health Organization. the International Monetary Fund. the Security Council. the General Assembly.

The World Health Organization is a specialized UN agency dealing with the problem of international public health, the problem of hungry and malnourished.

The International Monetary Fund is an international organization that is engaged in strengthening international monetary cooperation and caring for financial stability.

The UN Security Council is one of the six UN bodies in charge of maintaining international peace and stability, adopts resolutions on activities in the maintenance of international peace.

The General Assembly is one of the six UN organs, and the only one in which all member states have the same representation, the main decision-making body, policy makers and representing the UN.

The answer is: The Security Council

The UN Security Council has the primary responsibility for international peace and security.