The “rocket-drone” project has become a key goal for Zelensky in 2025. In November, he told the Verkhovna Rada, Ukraine’s parliamentary body, that he wanted to see Ukraine produce 30,000 long-distance drones, and 3,000 “cruise missiles or missile-drones” over the next year.
These “missile-drones” are a new genre of weapons that Ukraine is pioneering.
Deploying new weapons to offset the lack of traditional ones isn’t a new move for Ukraine. Just as Ukraine has deployed UAVs to take on roles traditionally reserved for an air force, such as aerial surveillance and targeted bombing, the rocket-drones are evolving to perform functions of cruise missiles, which Ukraine doesn’t produce.
“They are basically the next evolution step of long-range deep-strike suicide UAVs,” says Fabian Hinz, a research fellow with the London-based International Institute for Strategic Studies who specializes in missiles. “As with so many things, because of technology, the lines are blurring.”
Neptune rockets are cruise missiles, so they are produced they just weren't designed for current use - on land and distance of 500+ kilometers. AFAIK the hardest part of cruise missile is turbofan jet engine and those were produced in Ukraine.