Robert Utley is by far one of the most accomplished experts in his field and that shows in the composition of this book. Dealing with the years between the Mexican War and the Civil War, Utley provides several different views of the period and the task in front of the men in blue.

From the end of the Mexican War, the role of the US Army was focused on expansion of existing trading routs and helping to create settlements that would soon be feeding the great westward migration. At the same time they had to secure much of the vast new mineral wealth that was gained from the war. The men that undertook this task were a special breed and were not always fitted to the role.’

Of course at the center of the story is the many Indian tribes that already lived out on the plains. These people lived a different sort of life, one that was so different from the Americans that the two sides were never going to be able to coexist. Utley spends a lot of time on these conflicts, societal and military that lead to atrocities on both sides of the equation. Once the two groups came into conflict and the Eastern politicians got involved, things became even more messy.

The final sections of the book deal with the coming Civil War and how this small frontier force of regulars would take in and integrate the huge number of “volunteers” that would swell its ranks.

The most interesting aspect of this book is that it sets the stage for the plains wars of the post Civil War era which most people are much more familiar with. In the end it is a good read and is highly recommended.