Question: Franz Burri, was a supporter of Nazi Germany from an early age and frequently visited the country during the 1930s, his hopes for a career in the SS were dashed when Reinhard Heydrich deemed him unsuitable, Heydrich was a high-ranking German Nazi official during World War II, and a main architect of which event?
Context: Reinhard Tristan Eugen Heydrich (] ) (7 March 1904 – 4 June 1942) was a high-ranking German Nazi official during World War II, and a main architect of the Holocaust.  He was an SS-"Obergruppenführer und General der Polizei" (Senior Group Leader and General of Police) as well as chief of the Reich Main Security Office (including the Gestapo, Kripo, and SD).  He was also "Stellvertretender Reichsprotektor" (Deputy/Acting Reich-Protector) of Bohemia and Moravia.  Heydrich served as president of the International Criminal Police Commission (ICPC; later known as Interpol) and chaired the January 1942 Wannsee Conference, which formalised plans for the Final Solution to the Jewish Question—the deportation and genocide of all Jews in German-occupied Europe. The Wannsee Conference (German: "Wannseekonferenz" ) was a meeting of senior government officials of Nazi Germany and "Schutzstaffel" (SS) leaders, held in the Berlin suburb of Wannsee on 20 January 1942.  The purpose of the conference, called by the director of the Reich Main Security Office SS-"Obergruppenführer" Reinhard Heydrich, was to ensure the cooperation of administrative leaders of various government departments in the implementation of the so-called Final solution to the Jewish question, whereby most of the Jews of German-occupied Europe would be deported to Poland and murdered.  Conference attendees included representatives from several government ministries, including state secretaries from the Foreign Office, the justice, interior, and state ministries, and representatives from the SS.  In the course of the meeting, Heydrich outlined how European Jews would be rounded up and sent to extermination camps in the General Government (the occupied part of Poland), where they would be killed. Emanuel Schäfer (April 20, 1900 – December 4, 1974) was a high-ranking SS functionary (SS-"Oberführer") and a protégé of Reinhard Heydrich in Nazi Germany. Operation Anthropoid was the code name for the assassination of Schutzstaffel (SS)-"Obergruppenführer" and "General der Polizei" Reinhard Heydrich, head of the "Reichssicherheitshauptamt" (Reich Main Security Office, RSHA), the combined security services of Nazi Germany, and acting "Reichsprotektor" of the Protectorate of Bohemia and Moravia.  The operation was carried out in Prague on 27 May 1942 after having been prepared by the British Special Operations Executive with the approval of the Czechoslovak government-in-exile.  Wounded in the attack, Heydrich died of his injuries on 4 June 1942.  His death led to a wave of merciless reprisals by German SS troops, including the destruction of villages and the killing of civilians.  Anthropoid was the only successful assassination of a senior Nazi leader during World War II. Otto Adolf Eichmann (] ; 19 March 1906 – 1 June 1962) was a German Nazi SS-"Obersturmbannführer" (lieutenant colonel) and one of the major organizers of the Holocaust.  Eichmann was tasked by SS-"Obergruppenführer" (general/lieutenant general) Reinhard Heydrich with facilitating and managing the logistics involved in the mass deportation of Jews to ghettos and extermination camps in German-occupied Eastern Europe during World War II.  In 1960, Eichmann was captured in Argentina by the Mossad, Israel's intelligence service.  Following a widely publicised trial in Israel, he was found guilty of war crimes and hanged in 1962. Sicherheitsdienst (] , "Security Service"), full title Sicherheitsdienst des Reichsführers-SS (English: Security Service of the Reichsführer-SS ), or SD, was the intelligence agency of the SS and the Nazi Party in Nazi Germany.  The organization was the first Nazi Party intelligence organization to be established and was considered a sister organization with the Gestapo , which the SS had infiltrated heavily after 1934.  Between 1933 and 1939, the SD was administered as an independent SS office, after which it was transferred to the authority of the Reich Main Security Office ("Reichssicherheitshauptamt "; RSHA), as one of its seven departments/offices.  Its first director, Reinhard Heydrich , intended for the SD to bring every single individual within the Third Reich's reach under "continuous supervision." The service record of Reinhard Heydrich was a collection of official SS documents maintained at the SS Personnel Main Office in Berlin from 1934 until the fall of Nazi Germany in 1945.  Most of Reinhard Heydrich's record was captured by the Allies and used for subsequent investigation into Heydrich's duties as head of the RSHA and overall performance in the SS in general. Born in Lucerne, to a half-German working-class family, Burri was a supporter of Nazi Germany from an early age and frequently visited the country during the 1930s.  He came to full-time activism in 1941 by forming his own "Bund der Schweizer in Grossdeutschland" (League of the Swiss in Greater Germany), calling for a very close relationship between his country and Nazi Germany.  Known for his crude language and his fondness for wearing the brown uniform of the Sturmabteilung, his hopes for a career in the SS were dashed when Reinhard Heydrich deemed him unsuitable.  Also involved in the larger National Movement of Switzerland, Burri quit this organisation after the rejection of his SS application in 1941 to set up his own "Nationalsozialistischer Schweizerbund" (NSSB), although he moved to Germany full-time soon after this and ran a sister group, the "Nationalsozialistische Bewegung in der Schweiz", from there.  Both of the groups were funded directly by Germany. Dr. Franz Alfred Six (12 August 1909 – 9 July 1975) was a Nazi official who rose to the rank of SS-"Brigadeführer".  He was appointed by Reinhard Heydrich to head department Amt VII, Written Records of the "Reichssicherheitshauptamt" (RSHA).  In 1940, he was appointed to direct state police operations in an occupied Great Britain following invasion. Karel Čurda (10 October 1911 – 29 April 1947) was an active Czech Nazi collaborator during World War II.  A soldier of the Czechoslovak army in exile, he was parachuted into the protectorate in 1942 as a member of the sabotage group "Out Distance".  He may be most infamous for his betrayal of the Anglo-Czech and Slovak army agents responsible for the assassination of top Nazi official Reinhard Heydrich in Prague.  His rewards were 1,000,000 Reichsmarks and a new identity, "Karl Jerhot".  He married a German woman and spent the rest of the war as a Gestapo collaborator.
Answer: Holocaust