This is an excellent, important book that details the effect the Indians--particularly their raiding and trading patterns-- had on the national policies and boundaries of the US and Mexico. The author backs this up with so much historical data from so many different sources that he convinced me, hands down. It is only shocking that no one really looked at US/Mex history from this angle before! I gave it 4 stars because there was a point about 1/2 way through the book where it dragged me down a bit and felt a bit redundant--SO many raids, SO many pleas for help from the farmers and ranchers to the Mexican gov't, SO much devastation--but once it got into the war between the 2 countries it had all my attention again and was just fascinating. I came away from it shocked, once again, by the way that cultures create vicious circles for themselves that they appear totally locked into. The Indians raid, often for revenge for some death that happened on a previous raid, knowing full well that the odds of more men being killed on this raid are high, and, of course, men do die, so yet another revenge raid follows. The federalists in Mexico don't want a strong central gov't, but then they need help from a strong nat'l military, so they plea for help, and it doesn't come because there is not the money for a strong nat'l military, but the federalists fight against the thought of a nat'l tax and a gov't that is strong enough to collect the tax. A very scary thing was to read about the way the US demeaned the Mexicans and their ability to protect themselves from the Indians, blaming it on cowardice, a lack of intelligence and education, and other awful things. Then they used that debased character that they had created to make the war against them seem like a righteous thing. Oh, how things repeat themselves. I couldn't help but wonder how much of the prejudice against Mexican now is a remnant of that carefully constructed view of them from the 1800's. This book is a must-read for anyone who is interested in either Indian history, the expansion of the US, or Mexican history!