Ukraine's Drone Attacks on Moscow

He cites an article entitled does Ukraine have a stash of domestically developed ballistic missiles ones that they he is celebrating are intended to be used to strike deep into russia. He then goes on so much is focused on what nadah will give them especially in standoff weaponry but it's 15 months into this thing  what were crash programs are likely maturing hence the flocks of drones that will be raining on moscow bad bad news for russia or is that bad news for the world? What interest do united states have in fighting with this level of risk and danger over who gets to govern the donbas region of eastern ukraine ?