Four decades after they emerged as marginal parties in the 1970s, Turkey’s militant Islamists and ultranationalists won a combined 53.6% of the national vote and 57% of parliamentary seats. President Recep Tayyip Erdoğan has said in the past that he would make foreign policy “in line with what my nation demands,” highlighting the Islamist sensitivities of his voter base. He will now add nationalist sensitivities to that foreign policy calculus. This will likely mean confrontations with nations both inside and outside Turkey’s region.