A lot of people in Somaliland, Kurdistan, Catalonia, Taiwan, Kosovo have worked on getting new countries recognised over the past few years, to highly varying d

A lot of people in Somaliland, Kurdistan, Catalonia, Taiwan, Kosovo have worked on getting new countries recognised over the past few years, to highly varying degrees of success. South Sudan is generally considered to be the newest country in the world. From a more frontier-y first principles approach, I'm not sure you really would be onto a winner. If the USA's own history has taught anyone anything, it's that the cost of settling and forging a new country in this way often comes with distasteful things like ethnic cleaning.