This collection of twenty four short stories is, as other reviewers have noticed, easy to read. It is the typical kind of book you may want to read on holidays or week-ends in a relaxed atmosphere, with a nice glass of something in your hand or on the table. That's how it worked out for me anyway.
Arguably, when reading this anthology, you will certainly prefer some of the stories to others, although I did not find particularly disliked ant of them or found them to be "bad". Apart from three which are original and specially drafted for this book, all stories have already been published, mostly in specialised reviews. You are unlikely to have read more than a couple of them already unless you are a bit of a collector (well, more than a bit perhaps) if only because these initial publications stretch from the 1950s to nowadays.
The authors represented published their stories over half a century and represent several generations. These include Cordwainer Smith, Joe Haldermann, David Drake and Fred Saberhagen, but also Elisabeth Moon, Neil Asher, Dan Abnett and David Weber.
If only to avoid spoilers - and some stories are quite surprising - I will refrain from presenting any of them. Many are gripping, and most have a bit of a bitter twist to them. Some are sad. Others are a bit horrible. The purpose of the editors when bringing together this collection seems to have been to show that, in future as today and as in the past, there is a high price to pay for war. If that was the case, then they have been rather successful.