An in-depth look at where Hill 350 is located and why it is pivotal in the Thai-Cambodian border confrontation.
The Thai-Cambodian border situation flared up again on the morning of 8 December 2025, when the 2nd Army swiftly retaliated by destroying the cable car on Hill 350, a key stronghold of the opposing side. Many wonder: What exactly is Hill 350? Where is it located? And why are both armies fiercely contesting this area?
"Hill 350" is not a common geographical name but a tactical designation for a hill situated along the Phanom Dong Rak mountain ridge. It is near Ta Kwai Temple in Surin Province, positioned about 300 meters west of the temple itself. The name derives from its elevation—approximately 350 meters above sea level.
Why is Hill 350 strategically important in the Thai-Cambodian border clash?
Although media often focus on Ta Kwai Temple itself, Major General Winthai Suwaree, the army spokesperson, clearly stated that the true strategic point is Hill 350. Its key importance lies in being "high ground," offering a significant advantage. Surrounding areas average 200 to 300 meters in elevation, but this hill rises to 350 meters.
From a tactical perspective, holding Hill 350 is like standing atop a tall tower, providing broad visibility. It serves as an observation post, controls the battle line, directs targeting, and easily blocks enemy troop movements.
Ta Kwai Temple sits at a lower elevation, so any base established there becomes an easy target for those positioned on Hill 350. Additionally, occupying higher ground facilitates supply logistics and enables stronger defensive positioning.
Due to its importance, when Cambodian forces used Hill 350 to launch attacks on Thai soldiers, the 2nd Army escalated operations to defend sovereignty. On 8 December 2025, clashes began at 05:05 near Chong An Ma in Ubon Ratchathani. The opposing side used heavy weapons. By 07:00, one Thai soldier was killed and four wounded. At 09:20, the 2nd Army successfully destroyed the cable car target on the western side of Ta Kwai Temple at Hill 350.
As a result of this operation, the Thai military disabled the opposing side's lookout posts that had been surveilling from the heights. Air support was also deployed to suppress Cambodian fire, while government offices were alerted to raise their security to the highest level.
Hill 350 is the crucial heart of this battleground—not because it is an ancient site, but because it is a "natural fortress." Whoever controls it gains a battlefield advantage that could also translate into leverage in national-level border negotiations.