During World War II, in which Portugal remained neutral, hundreds of Jewish refugees came to Caldas da Rainha to escape Nazism. Caldas also served as home to British and American airmen who landed or crashed in Portugal or off its coast. In January 1943, 230 Britons resident in Axis power Italy were evacuated to Caldas, where they were expected to stay until the end of the war. Most of these evacuees were over 65 years of age and had resided in Italy for a long time.