During the episode "The Defector" Picard basically refers to William Riker as a American. During the course of the series Riker pretty constantly refers to himself as a Alaskan which might lead some to believe that Alaska is a independent sovereign nation. Others hold that by the 24th century there effectively are no sovereign nations left in existence on Earth. That United Earth is a "One Nation" planet."The Defector"
Riker: I don't like it. I would've expected a greeting party.
Picard: You echo another noteworthy commander in a similar circumstances, Number One.
A countryman of yours, George Armstrong Custer when his Seventh Cavalry arrived at the Little Big Horn.
Riker: May we have better luck.
Is Riker a American national?
Does America (and other nations) still exist in the 24th century as a independent sovereign nations?