Soldiers carry a trophy during the opening ceremony of the Military Olympic Games "Command Forces" at the Military Fort of Tolemaida in Tolima department, Colombia, on July 23, 2014. 21 countries and more than 70 men of the elite assault groups of the Americas' armies take part in the 10th edition of the Military Olympic Games "Command Forces", held from July 23 to July 31. (Xinhua/Jhon Paz)

A soldier takes part during the opening ceremony of the Military Olympic Games "Command Forces" at the Military Fort of Tolemaida in Tolima department, Colombia, on July 23, 2014. 21 countries and more than 70 men of the elite assault groups of the Americas' armies take part in the 10th edition of the Military Olympic Games "Command Forces", held from July 23 to July 31. (Xinhua/Jhon Paz)

A soldier takes part during the opening ceremony of the Military Olympic Games "Command Forces" at the Military Fort of Tolemaida in Tolima department, Colombia, on July 23, 2014. 21 countries and more than 70 men of the elite assault groups of the Americas' armies take part in the 10th edition of the Military Olympic Games "Command Forces", held from July 23 to July 31. (Xinhua/Jhon Paz)

A soldier takes part during the opening ceremony of the Military Olympic Games "Command Forces" at the Military Fort of Tolemaida in Tolima department, Colombia, on July 23, 2014. 21 countries and more than 70 men of the elite assault groups of the Americas' armies take part in the 10th edition of the Military Olympic Games "Command Forces", held from July 23 to July 31. (Xinhua/Jhon Paz)

Colombian soldiers take part during the opening ceremony of the Military Olympic Games "Command Forces" at the Military Fort of Tolemaida in Tolima department, Colombia, on July 23, 2014. 21 countries and more than 70 men of the elite assault groups of the Americas' armies take part in the 10th edition of the Military Olympic Games "Command Forces", held from July 23 to July 31. (Xinhua/Jhon Paz)

A soldier makes a parachute demonstration during the opening ceremony of the Military Olympic Games "Command Forces" at the Military Fort of Tolemaida in Tolima department, Colombia, on July 23, 2014. 21 countries and more than 70 men of the elite assault groups of the Americas' armies take part in the 10th edition of the Military Olympic Games "Command Forces", held from July 23 to July 31. (Xinhua/Jhon Paz) 

A soldier makes a parachute demonstration during the opening ceremony of the Military Olympic Games "Command Forces" at the Military Fort of Tolemaida in Tolima department, Colombia, on July 23, 2014. 21 countries and more than 70 men of the elite assault groups of the Americas' armies take part in the 10th edition of the Military Olympic Games "Command Forces", held from July 23 to July 31. (Xinhua/Jhon Paz)