On Friday morning local time, North Korea’s Korean Central News Agency announced that Kim Jong Un had supervised the test of a “newly developed ultramodern tactical weapon.” The announcement marked the first time in 2018 that Kim had inspected a weapons test of any kind.

Amid unprecedented diplomacy with South Korea and the United States this year since coming to power, Kim had lowered the profile of North Korea’s various weapons programs, seemingly in an attempt to avoid unnecessarily antagonizing U.S. President Donald J. Trump, who, since the June 12 summit in Singapore, had repeatedly touted