But the middle and southern part, including Schleswig's only city, Flensburg, remained in what, since the unification of Germany, had become German hands. In Denmark, the loss of Flensborg caused a political crisis, Påskekrisen or the Easter Crisis, as it happened during the Easter of 1920.[5][6] After the Second World War the area remained as German territory and, with Holstein, formed the new state of Schleswig-Holstein as a part of the Federal Republic of Germany (West Germany) in 1948.