Ivangelicals marching after their leader Rev. Ivan Stang (who had an invisibility spell cast on him by a witch moments before this photo was taken)
One of the major schisms in the Church of the SubGenius is between the Ivangelicals and Holocaustals. Ivangelicals believe that the remaining humans should simply be enslaved after X-Day, with SubGenii rightfully ruling over them. The Holocaustals believe all humans should be slaughtered during the Rupture.
As the name implies, the Ivangelicals are led by Rev. Ivan Stang.