The huge number, size, and wide distribution of military camps of the principate within and outside the Roman Empire makes a systematic analysis of these fortifications difficult. But a comprehensive handbook sadly is lacking. A review of the progress of excavation and research is provided by the proceedings of the international Limes Congress taking place roughly every three years since 1949 in the former frontier regions of the Imperium. H. von Petrikovits’ monograph on the internal buildings of legionary fortresses (1975) is still the best in its field. Questions about the typology and function of camp buildings are discussed and considered against the background of military history.
Research on Roman military camps has developed to different levels in the various regions: the information available about Britain and the Rhine and Danube provinces is very good. The present state of research about the legionary fortresses in the strategically most important frontier zones of the empire has recently been summarized in papers published in honor of G. C. Boon (Brewer 2000). The military camps in the Germanic and Britannic provinces from the period of the first to the second century are described authoritatively by Johnson 1987. The series “Der Obergermanisch-Raetische Limes des Romerreiches” (ORL) consisting of 14 volumes from between 1894 and 1938, is still an indispensable source for questions concerning the camps of the limes section in Upper Germany and Raetia. Important excavation results from the camps along the Lower and Upper German as well as the Raetian limes are published in the series “Limesforschungen” by the Romisch-Germanische Kommission, a division of the Deutsches Archaologisches Institut (German Archaeological Institute). An excellent source for the camps along the Danube limes in Austria is provided by the monograph by Genser 1986. The publication by Gudea (1997) is a good overview of the camps in the province of Dacia. For the section of the Lower Danube limes Zahariade and Gudea 1997 can be consulted.
Gregory 1995-7 provides a summary of the current state of research on the forts from the Turkish coast of the Black Sea up to the Gulf of Aqaba. On the occasion of the eighteenth limes congress in Amman Kennedy published a monograph (2000) on the forts along the limes Arabiae in Jordan. A similar publication on the Roman military camps in North Africa is lacking. Here the basic works are by Euzennat 1989 and Trousset 1974. Recently archaeological research on the Roman military camps of the Iberian peninsula has been given a new impetus by Morillo Cerdan 2002.
As for the camp villages, the publications especially by H. von Petrikovits and C. S. Sommer deserve special mention.