June 19 marks two years since Vladimir Putin and Kim Jong Un signed a mutual defense treaty in Pyongyang, bringing Russia and the Democratic People's Republic of Korea (DPRK, or North Korea) into their closest alignment since the collapse of the Soviet Union. In the two years since, DPRK troops have fought alongside Russian forces in the war against Ukraine. North Korean missiles have struck Ukrainian cities, and millions of exported artillery shells have helped fuel Russia's war machine. In re