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,
Thomas D. Tannenbaum His son Eric served as president of the Artists Television Group. Tannenbaum died on December 1, 2001 at the Motion Picture & Television Country House and Hospital at the age of 69 in Woodland Hills, Los Angeles, California. The cause was complications of heart and liver failure. Thomas D. Tannenbaum Thomas David Tannenbaum (February 4, 1932–December 1, 2001) was an American producer. Tannenbaum was a producer for more than 40 years. And in that time, Tannenbaum served as an executive at several film and television studios. They include Metro-Goldwyn-Mayer, David Wolper Productions, Paramount Television, Universal Television, and Columbia Pictures Television.