The 13th China International Defence Electronics Exhibition (CIDEX) opened at the China National Convention Center in Beijing on Wednesday. The exhibition covers an area of nearly 30,000 square meters, with almost 400 companies participating. The exhibits span multiple fields including unmanned and anti-unmanned, network information and security, computer software and hardware, special electronic components, command and communication, and new materials. It comprehensively showcases the latest achievements in military electronic information technology from both domestic and international sources. The number of visitors is expected to exceed 40,000. Photos: Chen Tao/GT