This analysis argues that Iran is steadily making progress towards a nuclear weapon and is doing so via North Korea. Iran is unwilling to submit to a years-long freeze of its military nuclear program as stipulated by the July 2015 Vienna Nuclear Deal. North Korea is ready and able to provide a clandestine means of circumventing the deal, which would allow the Iranians to covertly advance that nuclear program. At the same time, Iran is likely assisting in the upgrading of certain North Korean strategic capacities.