We have a excellent example in early modern Western history when there were indeed "prayer breaks" held by Protestants on one side and Catholics on the other.  Both determined that they have God on their side.  In the resulting "Wars of Religion," Europe witnessed slaughter on a grant scale.  It was finally decided that to stop the slaughter, God needed to be taken out of the equation so that some sort of peaceful resolution of the conflicts could be obtained.   This was one element which lead to the later idea of the separation of Church and State.  

It is too bad that our denomination can't admit that God has very little to do with the political decisions made by human beings--even in, and especially in church settings.  A great illustration of this occurred at the last General Conference session held in San Antonio.