These sanctions join a large number of other sanctions that seem to target the drone network.
Russian airlines continue to operate Western jets, but struggle to import replacement parts.
Iranian media reported that Moscow expressed readiness to invest in Iran's steel, oil and petrochemical industries.
Saudi Arabia and Iran have re-established diplomatic ties and Iran has been a significant military ally to Russia.
With Iran’s recent decision to patch up relations with Saudi Arabia via a deal brokered by China, it’s plausible it may soon be ramping up its nuclear and missile programs.
Putin has often called on the global events of the 1930s when discussing his Ukrainian adversaries.
The Russian decision to harass, intercept, or down the US drone is important. This is not the first time that planes have shot down drones.