Analysis: What's behind Iran's alleged drone deal with Russia?

Russia's recent missile and drone strikes on Ukraine have highlighted three war developments. Firstly, Iran appears to be playing a significant role in arming Russia. And finally, this new level of intensity means Ukraine is going to need help from the West if this new influx of missiles is to be stopped. In recent weeks, despite Iranian and Russian denials, images of the Shahed-136 drones, their distinctive delta wings silhouetted against the sky, have circulated around the global media. In Kyiv, tower block residents watched in horror as the drones flew below their windows, the lawnmower-like whine of their engines clearly heard, as they purposefully made their way to intended targets.