Operation Tannenbaum 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 II. For tactical reasons, Adolf Hitler made repeated assurances before the outbreak of the Second World War that Germany would respect Swiss neutrality in the event of a military conflict in Europe. In February 1937, he announced that "at all times, whatever happens, we will respect the inviolability and neutrality of Switzerland" to the Swiss federal councillor Edmund Schulthess, reiterating this promise shortly before the Nazi invasion of Poland. These were, however,
Rina Tannenbaum Rina Tannenbaum Rina (Irena) Tannenbaum (born December 13, 1953) is an Israeli/American materials scientist and chemical engineer and presently Professor in the Program of Chemical and Molecular Engineering in the Department of Materials Science and Engineering at the State University of New York at Stony Brook. She received her Ph.D. in chemical engineering from the Swiss Federal Institute of Technology in Zurich. She has performed research in numerous areas including potential applications of carbon nanotubes, self-assembly, block copolymers, cellulose nanocomposites and tissue engineering. She has authored more than 150 publications in these fields that were published in top-tier journals, such