RecruitingPhase 2Drug trialNeoadjuvant Pembrolizumab and IO102-103 for Squamous Cell Carcinoma of the Head and Neck (SCCHN).This research is being done to see if it is safe to give investigational combination of study drugs (Pembrolizumab and IO102-103) before surgery to people with surgically resectable (removable) newly diagnosed or recurrent metastatic SCCHN. This will be done by watching participants closely for possible side effects from Pembrolizumab and IO102-103. In addition, participants will be monitored for any delays to their surgery due to the study drugs.