North Korea once again mobilized its armed forces for a massive display of military power on Thursday. Columns of soldiers goose-stepped through Kim Il Sung Square. Jets flew in formation overhead. But for once, it wasn’t the country’s monster missiles that stole the show.

Instead, with high-ranking Russian and Chinese delegations in attendance, the DPRK used the parade to flaunt its newest unmanned capabilities — an underwater nuclear drone first revealed earlier this year, and advanced aerial drones that appear nearly identical to American designs.

Other new capabilities appearing for the first time included