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
Samuel A. Tannenbaum also published a major series of bibliographies on significant Elizabethan and Jacobean figures that were important scholarly resources in their era. His second wife, the former Dorothy Rosenzweig (married 1942), collaborated with him on some of his later publications. As an amateur or self-taught palaeographer, Tannenbaum took positions and presented arguments on issues involving this area of Shakespeare studies, burgeoning at the time—though he often ended up on the side opposite the evolving scholarly and critical consensus. He was intensely skeptical of the view that Shakespeare contributed to the revision of the play "Sir Thomas More," and argued against the