Operation Tannenbaum a 1940 round-table conference between Italian foreign minister Galeazzo Ciano and German foreign minister Joachim von Ribbentrop, also attended by Hitler. Ciano proposed that in the event of Switzerland's dissolution, it should be divided along the central chain of the Western Alps, since Italy desired the areas to the south of this demarcation line as part of its own war-aims. This would have left Italy in control of Ticino, Valais, and Graubünden. Operation Tannenbaum Operation "Tannenbaum ("Fir Tree"), known earlier as Operation "Grün ("Green"), was a planned but cancelled invasion of Switzerland by Nazi Germany and Italy during World War
Frank Tannenbaum Affairs": Frank Tannenbaum Frank Tannenbaum (4 March 1893 – 1 June 1969) was an Austrian-American historian, sociologist and criminologist, who made significant contributions to modern Mexican history during his career at Columbia University. Tannenbaum was born in Austria on 4 March 1893. His Eastern European Jewish family immigrated to the United States in 1905. He ran away from home as an adolescent and never finished high school. He worked at a number of menial jobs and became involved in radical labor politics of the era. As a young man, he worked a busboy. During the economic crisis of 1913–1915, he