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,
Benjamin Tannenbaum Charles "The Bug" Workman's role in the 1935 gangland slaying of Dutch Schultz, that Tannenbaum may have been targeted as a potential informant during District Attorney Thomas E. Dewey's prosecution against Louis Buchalter. Benjamin Tannenbaum Benjamin "Benny the Boss" Tannenbaum (c. 1906 – February 6, 1941) was a New York mobster involved in narcotics and the fur rackets as well as a mob accountant for labor racketeer Louis "Lepke" Buchalter and Jacob "Gurrah" Shapiro. A friend of Bronx real estate agent Max Heitner, whom he had met at a New York summer resort, he was shot twice in the chest