Iran Drone Swarm Claim Raises New Air Warfare Concerns A US pilot’s reported account of a jellyfish-like Iranian drone swarm before an F-15E crash has raised questions about Iran’s drone warfare capabilities. Officials have not confirmed the exact cause of the crash, but the claim has sparked fresh debate on the future of air combat. Iran’s ‘Jellyfish’ Drone Swarm Claim Raises Questions After US F-15E Jet Crash