Quote Originally Posted by Montmorency View Post

With rather few exceptions, whole nations are not v'pokhode gatoviye.
Sorry couldn't help this one: v pokhod gotovyie.
But I'm sure even in ancient times it was not the WHOLE nations that were on the move. There were some individuals (or perhaps even groups) that chose to stay (see Avari "The Silmarillion") or turned back at an early stage.