Title: Bedrohte Schweizer Seegrenzen im Zweiten Weltkrieg
Subjects: Boundaries, Defenses, Switzerland, Switzerland. Armee, World War, 1939-1945, World war, 1939-1945, switzerland, Europe, defenses, Switzerland, politics and government, Military History, Campaigns, Lakes, History, Military policy, Military planning, Strategic aspects, Switzerland. Armée
Places: Switzerland