Which country was able to successfully resist invasions by the nazis

German troops overran Belgium, the Netherlands, Luxembourg, and France in six weeks starting in May 1940. France signed an armistice in late June 1940, leaving Great Britain as the only country fighting Nazi Germany.

Explanation:

I hope this is correct

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.