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,
Frank Tannenbaum a leader of the Industrial Workers of the World. In January 1914, Tannenbaum, then 21 years old and a member of the IWW-affiliated Waiter's Industrial Union, proposed a campaign of demanding relief from New York City churches. Starting in February, he led masses of workers to churches, disrupted services, and demanded that they be given food and shelter. Although most churches complied, the New York press, notably the "New York Times", decried Tannenbaum and the Wobblies. On March 4, Tannenbaum led a group of unemployed workers from Rutgers Square to the Catholic St. Alphonsus Church on West Broadway. There, they