IDET International Fair of Defense and Security Technology and of Special Information Systems is the leading international event in the field of defense and security technology and special information systems in Central and Eastern Europe. The event is held biennially in Brno, Czech Republic, and brings together leading manufacturers, suppliers, and experts from around the world.

IDET showcases the latest innovations and technologies in the defense and security sectors, including weapons systems, armored vehicles, aircraft, cybersecurity solutions, and special information systems. The fair attracts a wide range of visitors, including government officials, military decision-makers, law enforcement agencies, and industry professionals.

In 2023, IDET attracted over 54,000 visitors from 57 countries and featured more than 580 exhibitors from 41 countries. The event is recognized as one of the most important defense and security exhibitions in the world, providing a unique platform for networking, cooperation, and innovation in the field.