Player Embed Code: Download Embed Share US, Cambodian forces partner for HA/DR-focused Angkor Sentinel 16 DMA Pacific - Hawaii Media Bureau March 15, 2016 | 1:23 U.S. and Cambodian forces officially opened Angkor Sentinel 2016, an annual bilateral military exercise hosted by the Royal Cambodian Armed Forces and sponsored by the U.S. Army Pacific, during a ceremony March 14 at the Training School for Multinational Peacekeeping Forces in Kampong Speu Province, Cambodia.