 Concurrent chemoradiotherapy is the recommended therapeutic approach for patients with unresectable stage III non-small cell lung cancer NSCLC, although surgery offers the chance of cure. With combined-modality therapy with radiation therapy and chemotherapy, the prognosis of stage III NSCLC remains poor. Nimotuzumab, a human anti-EGFR monoclonal antibody, has shown its efficacy in the treatment of headneck squamous cell carcinoma, nasopharyngeal carcinoma as well as lung cancer. This study is studying neoadjuvant nimotuzumab plus gemcitabine and carboplatin followed by surgery to see how well it works in treating patients with unresectable stage III squamous cell lung carcinoma. 