Tensions between Cambodia and Thailand have exploded again after deadly clashes erupted along their contested border. Here's a look at the history of these two nations and how their relations soured over the years.

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

Border clashes between Thailand and Cambodia are nothing new. Disputes have persisted for more than a century along their 817km frontier, much of it poorly demarcated. A key flashpoint is the Preah Vihear temple, a 1,000-year-old Unesco World Heritage Site.

Military violence has broken out between Thailand and Cambodia, resulting in at least 12 confirmed deaths. The little-known feud has raged on for decades, with the outbreak of violence taking place in the contested border area of the Emerald Triangle after a second Thai soldier in a week lost their legs in a landmine explosion.

Tensions between Thailand and Cambodia have escalated into deadly violence along their contested border, marked by exchanges of fire, airstrikes, and

The Foreign Office has urged travellers from the UK to ‘take extra care and stay alert in border areas’, saying: ‘Take extra care and stay alert in border areas and follow the instructions of local authorities, especially at tourist destinations such as the Preah Vihear temple, the Ta Kwai temple and the Ta Muen Thom temple.

Of the six F-16 fighter jets that Thailand readied to deploy along the disputed border, one of the aircraft fired into Cambodia and destroyed a military target, the Thai army said.