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 as David Gerber, Valerie Harper’s TLC Productions and Fred Silverman, who he would later bring into Viacom Productions. After leaving MGM, in 1980, Tannenbaum went to Centerpoint Productions where he stayed until 1982. In 1984, Tannenbaum became the first president of the newly formed Viacom Productions. Tannenbaum brought together Fred Silverman and Dean Hargrove to produce the "Perry Mason" movies. The three were also responsible for "Matlock", "Jake and the Fatman" and "Father Dowling Mysteries". He served as president until 1991. Tannenbaum was married once and divorced. He had three children, Audrey, Eric and Madelyn. He also had four grandchildren.