At the XXI UISPP World Congress in Poznan (Poland), the Metal Ages in Europe and the Mediterranean commission is organizing General Session 10 'Bronze Age and Pre-Roman Iron Age' and Thematic Session 17B 'Unusual features in prehistoric and protohistoric fortifications', as well as co-organizing Thematic Session 19A/B 'Metallurgical territories and metal supply networks in prehistory and protohistory'.