Display of force in South Korea

Members of the South Korean Army Special Forces demonstrate their martial arts skills during a rehearsal for a welcome ceremony to greet foreign defense officials and guests for the Seoul International Aerospace and Defense Exhibition 2013, at the Defense Ministry in Seoul, South Korea, Oct. 29, 2013.

About 360 defense firms from 28 countries attend the biennial exhibition from Oct. 29 to Nov. 3.

South Korea's FA-50 fighter jet is displayed at the firm's booth at the Seoul International Aerospace and Defense Exhibition (ADEX) 2013 in Goyang, South Korea, Oct. 28, 2013.

A Eurofighter Typhoon is displayed at the Seoul International Aerospace and Defense Exhibition (ADEX) 2013 in Goyang, South Korea, Oct. 28, 2013.

Members of the South Korean Army Special Forces use a smart phone to take pictures at the Seoul International Aerospace and Defense Exhibition 2013, Oct. 29, 2013.

An employee of the South Korean Aerospace and Defense company, LIG Nex1, operates "Chiron," a portable surface-to-air missile, at the firm's booth at the Seoul International Aerospace and Defense Exhibition (ADEX) 2013, Oct. 28, 2013.

A member of the South Korean Army Special Forces uses a smart phone to take pictures of his fellow soldiers at the Seoul International Aerospace and Defense Exhibition 2013, Oct. 29, 2013.

Workers display a Chumoo model, South Korea's multiple launch rocket system, at the firm's booth during a media day of Seoul International Aerospace and Defense Exhibition (ADEX) 2013, Oct. 28, 2013.

Models of Airbus planes are displayed at the firm's booth at the Seoul International Aerospace and Defense Exhibition (ADEX) 2013, Oct. 28, 2013.

Members of the South Korean Army Special Forces demonstrate their martial arts skills at the Seoul International Aerospace and Defense Exhibition 2013, Oct. 29, 2013.

Members of the South Korean honor guard throw their guns in the air at the Seoul International Aerospace and Defense Exhibition 2013, Oct. 29, 2013.

Akashi, India's Mobile Launcher System, is displayed at the Seoul International Aerospace and Defense Exhibition (ADEX) 2013, Oct. 28, 2013.

A photographer takes pictures of Lockheed Martin F-35 Lighting II at the Seoul International Aerospace and Defense Exhibition (ADEX) 2013, Oct. 28, 2013.

A South Korean tank is displayed at the Seoul International Aerospace and Defense Exhibition (ADEX) 2013, Oct. 28, 2013.

Members of the South Korean Army Special Forces demonstrate their martial arts skills at the Seoul International Aerospace and Defense Exhibition 2013, Oct. 29, 2013.