This study design is based upon decreasing primary tumour and preventing oder delaying micrometastases by means of a chemo induction therapy, increasing R0 resection rates and preventing local recurrence by means of preoperative chemoradiotherapy, increasing the radiosensitivity of tumour cells through treatment combination with cetuximab, surgical resection of the locoregional primary tumour or definitive radiochemotherapy in case the primary tumour is inoperable.