Kim Jong-un seized on Russia’s need for support in its war against Ukraine. His reward is a rapidly modernizing military that threatens the delicate balance of power on the Korean Peninsula.

It comes as Ukraine has stepped up its appeals for continued European and U.S. military supplies, as support for Kyiv in the Trump administration has ebbed. The Russian Embassy in

The United States and 10 allies say the military cooperation between Russia and North Korea flagrantly violates U.N. sanctions and has helped Moscow increase its missile strikes on Ukrainian cities.