Russia's ongoing invasion of Ukraine is a direct challenge to the stability of Europe –a challenge that that Iran and North Korea materially support. What truly defined China's recent elaborate military parade was not the weaponry rolling across Tiananmen Square, but the rare gathering of leaders who stood shoulder to shoulder. (Photo by Alexander Kazakov/Pool/AFP via Getty Images)The spectacle that unfolded in Beijing recently was unlike any other military parade the world has seen. For decades, authoritarian regimes such as Russia, China, and North Korea sought to secure themselves individually; now, they appear to be converging in an open and public manner. China, Russia, North Korea, and Iran are no longer operating as distant or disconnected powers with coincidental interests.