Satellite images show Moscow is militarising the North African country and recruiting drone operators, raising concerns for Europe's southern flank.
Move allows Kyiv to buy weapons and ammunition through alliance framework as relations with Washington deteriorate under Trump administration.
Ukraine apologised for the incident, blaming Russian electronic warfare for diverting the drone during operations against Russian military targets.
New communication lines run from Russia westward towards Polish, Lithuanian and Latvian borders, with control centre based in Russia.
An Algerian Hercules transport plane crossed Polish airspace from Belarus after loading Russian military equipment in Moscow, part of a regular corridor.
Around 100 Swedish soldiers and a Patriot air defence system will guard the critical Rzeszów-Jasionka logistics node near the Ukrainian border from December.
