Support from North Korea — in the form of weapons and ammunition — helps Russia keep up the pressure. KCNA via REUTERSOne of the biggest asks from Kim could be technology for nuclear-powered submarines, which North Korea is trying to build. North Korea currently maintains one of the world's largest fleets, with estimates ranging from 64 to 86 total subs. Much of the country's stockpiles date back decades, and US and South Korean officials have raised doubts about the effectiveness of these weapons. AdvertisementBut how this plays out is not all about what North Korea wants.

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