Brought down near Crimea, which is Russian territory.

"flying with transponders turned off and in violation of the temporary air borders established by the ongoing military operation"

Military press secretary deliberately avoided the press's Crimea question when asked.

I believe the US Military and Russia are working together to appear at odds for propaganda purposes. The downing of the drone was "unprofessional" but that is hardly illegal.

Legal boundaries of airspace require Air Defense Identification Zones, keyword "identification" as in "transponders turned off."

Drone was a provocation to Crimean airspace as an "unidentified vessel."

18.11.1 and 18.11.2 is what Trump is doing. Complaints not made through usual diplomatic channels. Transmitted through electronic means, aka press releases and Truth Social.

Complaints made through a neutral state, aka Ukraine. This may explain more of the secret trips to Ukraine. Russia announced tribunals last year.

Demand for investigations, demand for financial compensation, demand for accountability.