R: Rockets obtained by Israel in 2009 en route to Hezbollah.
Credit: @JulianRoepcke
My take:
#Iran-backed militias were behind last night's attack.
Right images: Rocket launcher used in the Dec 3 attack on the Ain Al-Assad air base in western Iraq.
Credit: @sfrantzman
"... rockets from the same 2016 production line were found in fighting in Syria in 2017 and 2018; lower lot number though."