The Blitz, which was the first important activity conducted by the new Space Exploration Alliance, occurred from July 11-13, 2004, and involved some 70 space activists visiting approximately 200 congressmen, senators, and congressional and Senatorial aides to convey to them a message of strong support for the new American space policy that refocuses the human spaceflight program on the goal of sending humans to the Moon, Mars and beyond. Of the activists present, about a third were drawn there by the Mars Society, a third by the National Space Society (NSS), while the remaining third comprised small delegations representing nearly all of the 20 space advocacy, industry, and professional organizations comprising the Space Exploration Alliance (SEA).