High-frequency trading ("HFT") is a form of financial trading which uses financial data, electronic trading tools, and computer algorithms in order to process vast quantities of information and conduct trades at a much faster rate than human traders are capable of. An average HFT firm might be able to move in and out of a position (e.g. by purchasing and selling particular assets) in seconds, or even fractions of a second.

During the Nazi occupation of Czechoslovakia, Czechoslovak resistance operatives carried out an assassination of Reinhard Heydrich, one of the most prominent and curel Nazi leaders. At the time, Heydrich served as the governor of the Protectorate of Bohemia and Moravia. The operation, known as ‘Operation Anthropoid,’ targeted Heydrich and led to his death. In response, the SS troops undertook a series of brutal reprisals, which included the destruction of villages and the killing of civilians.