The Arabian Peninsula is home to three nations: OMAN, QATAR, and Yemen. OMAN is a country located in the southeastern part of the Arabian Peninsula, with a population of 4.6 million people. QATAR is a small Arab nation located in the Middle East, with a population of 2.6 million people. Yemen is a country located in the southwestern part of the Arabian Peninsula, with a population of 28 million people. All three countries are known for their rich cultural heritage and have been important trading partners in the region for centuries.