Dhamma, the teaching of the Lord Buddha, joined with Yatra means walk, so Dhamma-yatra is a Dhamma walk or march.

The Thai Buddhist group led by Sulak Sivaraksa, a prominent Thai intellectual and social critic, known for his outspokenness, marched from Wat Mai Sai Thong in Aranyaprathet district of Sa Kaeo province to the Thai-Cambodian Friendship bridge on the border to welcome a Buddhist group from Cambodia which marched from a temple in Ou Chrov district of Banteay Meanchey province to the bridge.

The groups held joint activities, including prayers, and lighting candles for peace and unity before proceeding to Wat Mai Sai Thong for more activities scheduled to be held until Wednesday.

The Joint Dhamma Yatra was a cooperation between Buddhists in Thailand and Cambodia to create friendship and peace; and ease the conflict and mistrust between the two countries.

The move was being held to coincide with Visakha Bucha Day Tuesday which marks the birth, the enlightenment and the passing away of Lord Buddha, which according to tradition miraculously fell on the same month and date in each of the three years.

In a related event, the Royal Government of Thailand supported the Eighth International Conference of the United Nations Day of Vesak at the UN regional headquarters for Asia on Saturday, where 1,700 Buddhist monks and lay persons from 85 countries prayed for worldwide peace and the well-being of Thailand's monarch His Majesty King Bhumibol Adulyadej for his 84th birthday this year, ending with candle-lit ceremonies at Buddhamonthon on Saturday evening.