This morning, an intriguing video started making rounds. A drone hovers over a group of soldiers in a Russian oblast, allegedly North Korean, before dropping a munition. You’ve probably heard about Ukrainian advances in this area, but this footage raises some burning questions: are North Korean soldiers actually joining the fray on Russian soil?

My friend, Ryan McBeth, dug into this in his latest video, breaking down everything from the tactical mistakes these soldiers made to the unique implications of their presence. You’ll notice these troops are grouped tightly together—a rookie move that screams inexperience. Russian soldiers have learned (the hard way) not to clump together in drone-vulnerable zones. But these troops might be fresh out of training, and if they’re North Korean, they’re likely unprepared for modern warfare.

Ryan suggests this odd tactical behavior points to North Korean troops, whose last major war experience dates back to the 1950s. They’d be used to ...