This is a very enjoyable book to read, full of surprising and suggestive insights. Perhaps most importantly, it is an interpretation that adds complexity, and nuances, to long-standing historiographical views of British involvement in the Spanish American Wars of Independence, of early Spanish American concepts of nationhood and ethnicity, and of the impact these adventurers' actions had in the region. ... this is a noteworthy contribution Latin American Studies, Vol 40 Many people have tried to write this book, but Matthew Brown finally has done it properly. It is a work of astonishing ambition and considerable labor and, through his new methodology, the author arrived at some surprising conclusions. Adventuring through Spanish colonies is an ambitious and successful book. In short, this book is a much needed corrective to earlier, more speculative accounts of the British and Irish recruits in Gran Colombia's independence armies. Irish Migration Studies in Latin America