4.5 Stars. Gruen's work was originally published in 1974, but this, the first paperback edition, contains a updated Introduction written in 1995. In this seminal work, Gruen used his vast knowledge of Ancient Rome to examine the commonly accepted theories of the collapse of the Republic. He systematically challenges every theory in order to reveal their weaknesses and to validate his own thesis. His thesis states that until 50 B.C.E. there was nothing out of the ordinary in Roman politics, culture, or law that indicated civil war was coming or that the Republic was threatened. Although some of his arguments are convincing, in my opinion he does not make his case. I agree with him that any one of the theories he works to debunk may not have indicated the impending civil war; however, I feel he makes a grave error in not considering that it was the preponderance of stressors that indicated a serious threat to the Republic. In other words, it may very well be a case of "the whole is greater than the sum of its parts." Also, I cannot agree with him regarding the Roman military and the legions' relationships with their commanders, especially as regards Caesar. In this case and others, recent historical research has supported some of the theories that Gruen challenged. One final word, I applaud him pointing out that all researchers bring their own biases (consciously or otherwise) to their works, and that the time and culture in which they live directly affect their perspectives. The "Last Generation of the Roman Republic" is a must read for serious students of Ancient Rome. Note: This book is not really suited for the casual student or those just beginning to learn about Ancient Rome.