A man walks past a booth of Ningbo Zhongkun Safety Technology Co., Ltd. at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

An unmanned aerial vehicle is seen at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

Exhibitors stand next to industrial valves at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

A man uses binoculars at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

People look at Yuntian's unmanned aerial vehicle YT280 at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

An exhibitor uses a wooden-made drone at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

People look at Edos's unmanned aerial vehicle JX450 at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

People look at a rocket launcher simulator at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)