Soldiers from around the world are in Mongolia for the tenth Khaan Quest multinational peacekeeping exercise.
More than 1,000 soldiers from 12 countries, including India, Germany, Great Britain, Japan, South Korea and the United States are taking part in the 12-day exercise.
This year's manoeuvres consist of various training courses including battalion level staff exercises, platoon level counter-improvised explosive device training and medical outreach.
Chinese military attache Sun Xusheng said: "From a military point of view, the exercise is only tactical, and on a small scale. I personally think that its significance is more political than military."
The first Khaan Quest exercise was conducted in 2003 between the US and Mongolia.
Khaan Quest 2012 will end on August 24.