Stoxx 600 Index Falls 0.4% Amid U.S-Iran Ceasefire Strain

European shares declined, with the pan-European Stoxx 600 index down 0.4%. The U.K.'s FTSE 100 dropped 0.1%, France's Cac 40 fell 0.5%, and Germany's DAX was down 0.9%. Travel stocks were particularly affected, with Lufthansa and Tui down 3.5%. The market reaction follows tensions related to a ceasefire agreement between the U.S. and Iran, raising concerns about future military responses, which could impact broader market stability.