The two nations have been locked in a decades-long conflict over their contested border. Tensions in disputed territories soured earlier this year.

There has been a dramatic escalation in a long-running border conflict between Thailand and Cambodia.  On July 23, five Thai soldiers from a border patrol unit in Ubon Ratchathani province were seriously injured after stepping on a land mine – a second

Cambodia went back to the court in 2011, following several clashes between its army and Thai forces that killed about 20 people and displaced thousands. The court reaffirmed the ruling in Cambodia’s favor in 2013. Cambodia has again turned to the international court to resolve the border disputes but Thailand has rejected the court’s jurisdiction.

Tensions have bubbled between the two neighbors for months, flaring on Thursday as Cambodia and Thailand exchanged fire.