Our military forces are not what they used to be. Things have changed. Russian military bases in Cuba are only another Russian weakness.
Our conventional forces are still vastly superior to Russia’s. Obama weakened our military for sure, but Russia’s military fell off a cliff. Just recall the recent sailing of their broken-down carrier battle group into the Mediterranean. They’re lucky the carrier didn’t sink along the way.
It’s Russia’s nuclear forces, which they continue to modernize, that makes them a threat.