YEREVAN (Armenpress)–Acting chief of the general staff of the Armenian armed forces, Lieutenant-General Enrico Apriamov, and Russell Grimly, military attach at the U.S. Embassy in Armenia, were present today at a ceremony of closing the Combined Endeavor 2007 exercises, which commenced at the Military Aviation Institute in Yerevan on April 27. Combined Endeavor is a U.S. European Command sponsored exercise, in-spirit-of Partnership for Peace, planned and executed to identify, test, and document the interoperability of joint, multi-national fielded strategic and tactical communications systems. This year, Armenia, as the forward operating site, hosted delegations from Croatia, France, Georgia, Russia, and the United States, providing the Military Aviation Institute as the location for the smaller hub of the exercise. For approximately 15 days, a zigzag of approximately 62 tests took place between the six nations in Yerevan and the 42 nations at the main operating site in Baumholder, Germany. Each year approximately 1,000 participants from several nations gather at the exercises main operating base in Baumholder. The main site works with a smaller group of national delegations situated at a rotating forward site to increase the real-world experience of maintaining communications between distant locations. The objective of the exercise in Armenia was to achieve, through the testing and documentation process, computer information system interoperability among participating nations in a test environment that focuses on operational relevance. In addition to the delegations at the forward site, the participating nations have teams at the main operating site. The Armenian delegation consisted of 15 Signal Officers, making this the fifth year that Armenia has participated in the exercise at the main site. In Combined Endeavor 2007, a total of 29 Armenian personnel were directly involved in the exercise at both the main and forward operating sites. In 2002, Armenia’simply observed the exercise. In 2003, the Armenia’s became full participants, with a team of three heading to the main site. The number of participants has increased every year.