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,
Bernice Tannenbaum repeated the president's promise to withdraw from the conference if the resolution was included in the final conference delegation. Kenya then brokered a compromise in which Zionism was omitted from the final conference report. In 2003 Tannenbaum was awarded Hadassah's highest honor, the Henrietta Szold Award for Distinguished Humanitarian Service. Bernice Tannenbaum Bernice Tannenbaum (6 November 1913 – 6 April 2015) was an activist with Hadassah. She joined Hadassah in 1944. She was Hadassah's president from 1976 until 1980, and while president she began Hadassah's practice of periodically holding its annual convention in Israel, with the first such Jerusalem held