Step 1: Understanding the Concept:
The United Nations (UN) Security Council is one of the six principal organs of the UN, charged with ensuring international peace and security. It has 15 members, of which five are permanent members with veto power.
Step 2: Detailed Explanation (Two Permanent Members):
The five permanent members of the UN Security Council, often known as the P5, are: China, France, Russia, the United Kingdom, and the United States.
Two of these permanent member countries are:
1. The United States of America (USA)
2. The United Kingdom (UK)
Step 3: Final Answer:
Two permanent member countries of the Security Council are the United States and the United Kingdom.