We would like to thank Frank Graham for allowing us to republish the book of the XV Brigade. For many years the 1975 reprint has been a hard book to find, and we are grateful to Frank for allowing us the privilege of reprinting it in us present form. Firstly some caveats concerning this edition. We decided to make the 1975 copy fit onto paper sizes presently in use, and so this edition is slightly smaller in size. The typeface has been altered and some of the captions of the photographs have been moved around the page. The quality of the paper has been improved and the original dustjacket has been redesigned. Our proofreading has in a couple of cases altered the original typesetting and whist the apologia at the end of the book is included, they have been amended in the text. We would like to thank you for purchasing this book, and hope that it is a fitting tribute to those who fought in Spain against Fascism and an inspiration to those who are still upholding their values in the present day and well into the future.