In the past the Jehovah 's Witnesses had difficulty securing large venues .
They held an annual congress on 14 - 16 July , 2006 , at the Luzhniki Sports Complex in Moscow , which more than 22,000 attended .
Although in the past the Jehovah 's Witnesses had difficulty securing large venues , they held an annual congress on 14 - 16 July , 2006 , at the Luzhniki Sports Complex in Moscow , which more than 22,000 attended .