驱逐大使、出动战机！泰柬冲突为何骤然升级？

Core Viewpoint - The recent military conflict between Thailand and Cambodia at their border highlights the long-standing territorial disputes, particularly centered around the Preah Vihear Temple, which has escalated tensions and resulted in casualties on both sides [2][6]. Summary by Sections Conflict Overview - On the 24th, soldiers from both Thailand and Cambodia engaged in a border conflict, with each side accusing the other of initiating fire. Thailand reported that Cambodian forces fired first, leading to the deployment of F-16 fighter jets to destroy two Cambodian military facilities [2][4]. - The conflict has resulted in the deaths of 9 Thai civilians and injuries to 14 others, prompting Thailand to close all border crossings with Cambodia [4]. Diplomatic Relations - In response to the conflict, Thailand downgraded its diplomatic relations with Cambodia, recalling its ambassador and expelling the Cambodian ambassador from Thailand. Cambodia reciprocated by lowering its diplomatic ties to the lowest level [4][5]. - The Thai government cited the injury of a Thai soldier from a landmine, allegedly newly placed by Cambodia, as a reason for the diplomatic downgrade [5]. Historical Context - The border dispute between Thailand and Cambodia has persisted for over a century, with the Preah Vihear Temple being a focal point of contention. The temple, a UNESCO World Heritage site since 2008, has been a source of military confrontations, including a notable clash in 2008 [6][7]. - Recent tensions were exacerbated by a leaked phone conversation between Thai Prime Minister Prayuth Chan-o-cha and Cambodian Senate President Hun Sen, which led to political fallout in Thailand and further complicated diplomatic relations [6][7].