Cambodia is planning its second military exercise with the United States next year, a senior military official said Monday. Gen. Sem Sovanny, chairman of the National Center for Control of Peace Keeping, Demining, and Explosive Remnants of War, said at a one-day meeting on the initiative planning conference in Phnom Penh that the 'Angkor Sentinel 2011' will be held next year at which the United States Army Pacific will be the main partner. Initial plan for the next military exercise will be held in May 2011. Sem Sovanny said Cambodia is satisfied with the success of the previous and first military exercise. Cambodia conducted for the first time in July this year the large scale U.S. sponsored military exercise which was participated by some 1,000 military personnel from more than 20 countries. The exercise was conducted in two forms: Command Post Exercise (CPX) from the hotel in Phnom Penh and Field Training Exercise ( FTX) in Kompong Speu province, about 50 kilometers from Phnom Penh. The exercise was part of the United Nations Peacekeeping framework for strengthening peace and security, which is known as Global Peace Operations Initiatives (GPOI). 