The years 1934 -1946 were for Mexico the time of political stability and relative economic growth. In its foreign policy the state made attempts to bring political isolation caused by nationalization of the oil industry to an end. It also sided with countries under the Nazi occupation. Mexico immigration policy however, had been for years quite strict. It became more lenient at the end of the thirties, particularly after the declaration of neutrality proclaimed in September 1939. The article describes groups of immigrants from Central and Easter Europe (Jews, Poles Slovaks, Czechs) who came to Mexico at the beginning of the World War II, concentrating on their involvement in the political life and common spheres of activity.