Is the criteria only the method?
It's not nation building if it doesn't involve the armed forces? What if it only involves the CIA, and only American funding and only involves hidden American military advisers.
Grenada was a military invasion and we changed the Government. So is the criteria now the size of the invaded Nation?
Reagan was Nation building all over the place, and for the most part we are better for it.
Not in the sense paleos object to and candidate Bush campaigned against.