How to pray for a nation in time of crisis

When a nation is in crisis we can either see what God sees for the nation, and align our hearts and thoughts with Him, or we can be overwhelmed by circumstances and allow offense and cynicism to take control of our heart. We can see how God sees and have faith, or we can see evil and tragedy without discernment - and lose faith. There is no in-between place for the heart of a Christian.

How do we respond to such a crisis? Does the word of God have anything relevant to say about such a crisis?