<prompt> Translate the following text to EnglishKatibu mkuu wa Umoja wa Mataifa wa NATO, Bill Gates, alijiuzulu mwaka jana baada ya kushtakiwa kwa kuidhinisha rushwa ya dola milioni 50 kutoka kwa kampuni ya ulinzi.  <response>: Last year, the Belgian secretary-general of NATO had to quit over charges that his Flemish Socialist Party accepted 50 million in bribes from a defense contractor. 