What problems might an outside country create if it draws borders without understanding local political or ethnic situations?

This is not merely a hypothetical but a reality.

Take Rwanda.

Rwanda was drawn without an understanding of the ethnic make up.

And, in effect, a minority population was given control over a majority population.

This is problematic as it creates tensions that should not exist.

d.summerains, the last one

- "bill clinton ( the 42nd u.s. president, served in office from by low unemployment, declining crime rates and a budget surplus. during clinton's second term, the u.s. economy was healthy, unemployment was low and the nation experienced a major technology boom and the rise of the internet."