Babylon or the Lady of Kingdoms is taken at the end of the Great Tribulation Period, shaking the earth out of her place, and causing great tidal waves.  During this time, God is a refuge for the saved people living on earth.  He's coming back to rule from Jerusalem.   When He returns, there's going to be no more need for West Points.  Nobody will learn war strategies again.  Peace will prevail.  This is going to be a time of praising God for His help.