North Korea and Iran Forge Stronger Ties. What's Behind the Growing Alliance?

North Korea recently sent a high-level delegation to Iran, signaling growing ties between the two countries united by opposition to the US. The delegation in late April involved discussions on economic and trade issues, likely including exchanges of military technology like nuclear weapons and ballistic missiles. North Korea provided nuclear technology assistance to Iran previously, and they may now share expertise on drones, satellites, and lessons from nuclear tests. Cooperation could see Iran supply North Korea with oil, and both sides bolster each other diplomatically against the US and its allies.