Cambodian officials have urged South Korea to review aspects of its defence cooperation connected to Thailand’s military capabilities, as tensions between the neighbouring Southeast Asian countries continue to shape regional security discussions.

The appeal follows Thailand’s efforts to modernize its air force with new aircraft and advanced weapons systems.

In recent years, the Royal Thai Air Force has expanded its fleet and integrated various international technologies as part of a broader strategy to strengthen national defence and safeguard sovereignty.

These upgrades include modern fighter aircraft and precision-guided munitions acquired through partnerships with several defence suppliers.

Cambodian representatives have expressed concern that some components used by Thailand’s air force originate from South Korean defence manufacturers.

Precision guidance kits and other equipment produced by South Korean companies have been integrated into certain Thai aircraft platforms, giving them enhanced strike capabilities during military operations.

Phnom Penh has asked Seoul to carefully assess whether such technologies could contribute to regional tensions, particularly following armed clashes along the Cambodia–Thailand border in recent years.

Cambodian voices argue that advanced military capabilities could alter the balance of power between the two neighbours and complicate diplomatic efforts aimed at stabilizing the frontier.

Thailand, for its part, maintains that strengthening its armed forces is a sovereign responsibility aimed at protecting territorial integrity and maintaining national security.

Thai military leaders have emphasized that fighter aircraft and advanced weapons systems are essential tools for defending the country and deterring threats in a complex regional environment.

The defence modernization program comes in the wake of heightened border tensions that escalated into armed confrontation in two thousand twenty five, when clashes between Thai and Cambodian forces displaced large numbers of civilians and drew international attention.

Despite periodic tensions, both countries have also pursued diplomatic engagement to prevent further conflict.

A peace declaration signed in Kuala Lumpur later in two thousand twenty five, witnessed by international leaders including "United States President Donald Trump," aimed to stabilize the border situation and encourage renewed cooperation between Bangkok and Phnom Penh.

Analysts say Cambodia’s request to South Korea reflects broader concerns about arms transfers and military technology in regions where historical disputes remain unresolved.

At the same time, they note that defence partnerships are common across Southeast Asia as countries modernize their militaries to respond to evolving security challenges.

The issue highlights the delicate balance between national defence modernization and regional diplomacy, as Southeast Asian nations continue working to strengthen security while preserving stability along shared borders.