Are Prophets the Foundation of the Church: A Study of Ephesians 2:20

Has Satan assigned specific demons special responsibility, authority and power over specific geographical and political areas? Could the entrenched resistance to the gospel in some nations and cultures be due to the ruling presence of a demonic spirit (or spirits) placed there by Satan? If so, what is the responsibility of the Christian? Is there a unique form of spiritual warfare calling for special tactics when it comes to dealing with so-called "territorial spirits"?