The North Korean leader has visited Russia for the first time since 2019.
Russia's Cabinet on Friday released a video showing Kim on an elevated platform looking at the cockpit of an Su-57 while listening to its pilot. Kim also beamed and clapped his hands when an Su-35 fighter jet landed after a demonstration flight.
Putin on Friday briefed Belarusian President Alexander Lukashenko about his summit with Kim. During their meeting in the Black Sea resort of Sochi, Lukashenko suggested Belarus could join Russia and North Korea in "three-way cooperation." Kim has announced goals to acquire nuclear-propelled submarines, which can quietly travel long distances and approach enemy shores to deliver strikes, a key asset in his efforts to build a viable nuclear arsenal that could threaten the US. Analysts say such capacities would be unfeasible for the North without external assistance.
Since last year, the US has accused North Korea of providing ammunition, artillery shells and rockets to Russia, likely much of them copies of Soviet-era munitions. South Korean officials said North Korean weapons provided to Russia have already been used in Ukraine.