Senior Correspondent, Dhaka:
The planned return of the Angkor Sentinel military exercise in 2027 marks more than the resumption of a long-suspended defense drill; it reflects a broader recalibration of relations between the United States and Cambodia amid evolving geopolitical dynamics in Southeast Asia. After nearly a decade of limited military engagement, both countries appear to be seeking a more pragmatic and strategically balanced relationship.
The exercise, first launched in 2010, was once a cornerstone of US-Cambodia defense cooperation. Its suspension in 2017 symbolized a period of growing distrust, as political tensions between Phnom Penh and Washington coincided with Cambodia’s deepening strategic and economic ties with China. Since then, Cambodia has increasingly been viewed as one of Beijing’s closest partners in Southeast Asia, particularly through infrastructure investments, military cooperation and the development of facilities at Ream Naval Base.
The decision to revive Angkor Sentinel therefore carries significant symbolic and strategic value. It suggests that both sides are willing to move beyond past disagreements and focus on practical areas of cooperation, including peacekeeping, disaster response and military professionalism. The move also reflects Washington’s renewed efforts to strengthen its presence across the Indo-Pacific by engaging countries that had previously drifted closer to China.
An important catalyst for this diplomatic thaw was the Cambodia-Thailand peace agreement brokered with US involvement. By helping facilitate a resolution to a regional security challenge, Washington created an opportunity to rebuild trust with Phnom Penh. Subsequent confidence-building measures, including naval visits and the easing of defense restrictions, laid the groundwork for restoring military-to-military engagement.
For Cambodia, the revival of the exercise appears less about choosing between major powers and more about diversifying strategic partnerships. Cambodian leaders have consistently emphasized a policy of neutrality and non-alignment. Re-engaging with the United States allows Phnom Penh to demonstrate that stronger ties with China do not preclude cooperation with other partners.
From a regional perspective, the return of Angkor Sentinel highlights the increasingly competitive nature of Southeast Asia’s strategic environment. Rather than forcing countries into exclusive alignments, major powers are competing for influence through diplomacy, security cooperation and economic engagement.
While the exercise alone will not fundamentally alter Cambodia’s close relationship with China, it does indicate a more balanced foreign policy approach. For Washington, it represents a modest but meaningful success in rebuilding influence in a strategically important part of the Indo-Pacific. The revival of Angkor Sentinel is therefore best understood as a symbol of pragmatic engagement rather than geopolitical realignment.
