<prompt> Translate the following text to EnglishJack L. Brock, Mkurugenzi wa Serikali na Mifumo ya Habari ya Ulinzi, anaweza kuwasiliana na wewe kwa kutumia:  <response>: It was prepared under the direction of Jack L. Brock, Director, Governmentwide and Defense Information Systems, who can be reached at 202-512-6240 or 