Definitely pre-war. The site of the Roman Camp at Nijmegen & Xanten. Nijmegen at the time (1st Century a.D.) was on the northern edge of the Roman Empire (or Germania Inferior). To the north of it some small forts and watch towers guarded the Lower Rhine, beyond that was free Germania/Frisia. While Nijmegen harbored one Roman Legion, further up-stream near Xanten, two Legions were garrisoned at Vetera Castra I, located on the Fürstenberg hard east of Xanten (Xanten/Birten). The civil settlement, located at the Valkhof, became known as Oppidum Batavorum Noviomagus. Castra Vetera: the two legion Military Camp on the Fürstenberg at Xanten. It was besieged and destroyed during the so called Batavian Revolt in 69/70 AD, the year following the death of Emperor Nero or the so-called year of the four Emperors - which saw Vespasianus triumph. The demise of the Military Camp, that had only a small garrison after Vittelius left with the Roman Rhine Legions for Italy to have his bid on the emperorship, is explicitly described in The Histories of Tacitus. With the exception of the amphitheatre no other tangible traces exist of this important site at the border river of Germania Inferior. The theater of Castra Vetera at Birten still exists and in still use (!). It is used as an open air theater: Germany's oldest theater.