The path is a path linking between R3A three countries including Thailand, China, and Laos that know that all three countries have a way of life and culture.
R3A route is a route between the three countries, including tame. Thailand, China, and Laos, where it is known that the three countries with different cultures and ways of life away.
The route R3A path delays between the three countries including. Thai, Chinese, and Laos, which as you know the three countries have a different way of life and culture