This portable Western-developed equipment it was said to receive has proved invaluable to the Ukrainian defense since the early invasion, as Stavros Atlamazoglou reported previously for Insider.But, the source told Sky, the captured Western weapons will now "probably be reverse-engineered and used in future wars."Sky News' source provided what seemed to be satellite images of two Ilyushin IL-76 military cargo planes arriving at and departing Mehrabad International Airport in Tehran early on August 20.Both countries have denied reports that Iran is supplying Russia with drones for use on the battlefield in Ukraine.Only on November 5 did Iranian Foreign Minister Hossein Amirabdollahian admit that it sent "a limited number of drones," claiming that happened months before the war in Ukraine, as Al-Jazeera reported."