ively ▁meet ▁at ▁the ▁Amsterdam ▁Ar en A ▁to ▁prepare ▁their ▁massive ▁b ann ers ▁for ▁the ▁week end . ▁The ▁group ▁distance ▁themselves ▁from ▁the ▁h ool igan ▁nature ▁of ▁other ▁groups , ▁such ▁as ▁the ▁F - side ▁and ▁V AK 4 1 0 , ▁but ▁are ▁known ▁in ▁Dutch ▁media ▁for ▁their ▁T if osi ▁activity , ▁and ▁for ▁the ▁manner ▁in ▁which ▁they ▁deliver ▁messages ▁revol ving ▁around ▁Ajax ▁current ▁events . ▁North ▁Up ▁Alliance ▁and ▁the ▁South ▁C rew ▁are ▁also ▁the ▁two ▁groups ▁at ▁Ajax ▁responsible ▁for ▁the ▁gra ff iti ▁pieces ▁that ▁are ▁found ▁inside ▁the ▁t unn els ▁of ▁the ▁Amsterdam ▁Arena , ▁from ▁the ▁players ▁entrance ▁to ▁the ▁lo cker ▁rooms . ▁ ▁J uda ism ▁ ▁Ajax ▁is ▁popular ly ▁seen ▁as ▁having ▁" J ew ish ▁roots " ▁and ▁in ▁the ▁ 1 9 7 0 s ▁supp or ters ▁of ▁rival ▁teams ▁began ▁ta un ting ▁Ajax ▁fans ▁by ▁calling ▁them ▁Jews . ▁Ajax ▁fans ▁( f ew ▁of ▁whom ▁are ▁actually ▁Jewish ) ▁respond ed ▁by ▁emb rac ing ▁Ajax ' s ▁" J ew ish " ▁identity : ▁calling ▁themselves ▁" super ▁Jews ", ▁chant ing ▁" J oden , ▁J oden "" ▁( J ew s , ▁Jews ) ▁at ▁games , ▁and ▁adopt ing ▁Jewish ▁symbols ▁such ▁as ▁the ▁Star ▁of ▁David ▁and ▁the ▁Isra eli ▁flag . ▁This ▁Jewish ▁imag ery ▁eventually ▁became ▁a ▁central ▁part ▁of ▁Ajax ▁fans ' ▁culture . ▁At ▁one ▁point ▁r