If anything, this is too short a short history, as I feel that a lot of topics were barely touched on. I would definitely have appreciated more maps, and a timeline would also have been useful. Nonetheless, as a refresher, I felt this book does a good job covering the civil war period and discussing some of the things that made this war different from earlier wars - the use of rifles instead of muskets, for example, made firearms far more deadly than they had been, necessitating new tactics and a reliance on trenches that had not characterized earlier conflicts. The use of trains on a large scale also was a new factor. Ships were protected with steel for the first time, radically changing naval warfare.
Our civil war has always fascinated me. It seems essentially to have been baked into the country's future when the constitution allowed for the practice of slavery. When it finally came it was far more horrific than any had anticipated, resulting in more deaths than suffered in both world wars, Korea and Vietnam combined. Though fought mostly in the south, it affected every corner of the country. And when it was over, segregation succeeded slavery, resulting in further decades of inequality and injustice.
Lincoln rightly referred to the war as a rebirth, and his Gettysburg address is as much a founding document as are the Declaration of Independence and the Constitution. It's frightening that so many Americans romanticize the Confederacy and its leaders, men who broke sacred vows and led hundreds of thousands of their fellow countrymen to their deaths in defense of a system that treated African Americans as property.