It is a synthetic work designed to draw together a range of interpretations of the major themes of the period, explaining how the inter-reaction of the US with a range of European countries was instrumental in making the US the super-power that it became by the 20th century. Externally challenged by the old order, the shape of US development was also subject to the internal stresses and tensions that pivoted upon a range of issues, Slavery included. Those very factors and forces that fed into the creation of the Civil War also part stimulated the way in which the US forged ahead before and after the 1812-14 war. This work disaggregates the entire period, providing a detailed overview of the complexities to hand.