Thailand and Myanmar.
As a country with something similar things one is the religion is Buddhism. Both Thai and Burmese Theravada Buddhism as the country with regard the largest population in the country. So the พุทธศาสนาในไทย and Myanmar is strong and stable, but also people of other religions, such as Islam, religion, Chris.
The prosperity of Buddhism make to people believe in Buddhism has widely in domestic the Buddha religion role and is reflected in the traditions. Such as Songkran in Thai. As the New Year of Thailand everyone will celebrate or they are going to the temples for prayer because they belief that it can make them to good luck. And play the water together at the same time, simultaneous in Myanmar has a festival day thaigyan like a deer ears in Thai, because there is a water play, a celebration including temple to make merit.