In a recent appearance on Russia's state-run television, Russian political scientist Sergey Mikheyev suggested that the country's "empire" should grow to encompass three American states.
"I want the Russian empire with Alaska, Hawaii, California, Finland, and Poland," he said, as translated by Gerashchenko for the clip he shared. "Although Poland and Finland are so stinky, I'm not sure, to be honest. We'll clean them."
He's listing the states where Russia has had territorial control at some point. Like, a "we controlled land once, so we can come back and take it" sort of thing.
California has more blue-water navy in San Diego than Russia has in the world.
It also has more air force stationed there than Russia has.
(granted, these are US forces, not California forces, but there is no real-world scenario right now in which California would face invasion without the full military support of United States and NATO)