[tlozo]

People need to imagine what would happen if Russia placed nukes and troops and airplanes in Cuba

Russians have always had troops and planes in Cuba. They have them now in Venezuela including a naval base.

As for nukes, no one was going to place nukes in Ukraine.

[mo]

https://en.wikipedia.org/wiki/List_of_Russian_military_bases_abroad

Russia appears to have closed their base in Cuba in 2002