Explanation:

The United Nations Security Council is one of the six principal organs of the United Nations (UN). It is responsible for maintaining international peace and security. The presidency or chairmanship of the Security Council rotates among the 15-members of the Council.

Rotation of Presidency:

The presidency of the UN Security Council rotates every month among the Council Members. The rotation is based on the English alphabetical order of the names of the member states. For instance, if a member state’s name starts with the letter “A” then that member state will assume the presidency in the month of January, if a member state’s name starts with the letter “B” then that member state will assume the presidency in the month of February and so on.

Functions of the Presidency:

The presidency of the Security Council has several functions, these include:

1. Scheduling and conducting Council meetings: The presidency is responsible for scheduling and conducting Council meetings.

2. Drafting and issuing statements: The presidency is responsible for drafting and issuing statements, press releases, and other documents on behalf of the Council.

3. Coordination with the Secretary-General: The presidency coordinates with the Secretary-General of the United Nations on matters related to Council meetings.

4. Liaison with other UN bodies: The presidency liaises with other UN bodies, including the General Assembly and the Secretariat, on matters related to Council meetings.

Conclusion:

In conclusion, the presidency or chairmanship of the UN Security Council rotates every month among the Council Members. The presidency has several important functions, including scheduling and conducting Council meetings, drafting and issuing statements, coordinating with the Secretary-General, and liaising with other UN bodies.