▁declared ▁Ari ▁Kil uan ji ▁the ▁new ▁ng ola ▁( ch ief ) ▁as ▁head ▁of ▁the ▁N d ongo . ▁Kil uan ji ▁lack ed ▁political ▁and ▁religious ▁legit im acy ▁in ▁the ▁eyes ▁of ▁many ▁Kim bund u ▁who ▁revol ted ▁against ▁the ▁new ▁establishment ▁with ▁encourag ement ▁from ▁N zing a . ▁ ▁In ▁the ▁after math ▁of ▁the ▁war , ▁the ▁king ▁of ▁N d ongo ▁sent ▁his ▁sister ▁N j ing a ▁M band i ▁to ▁Lu anda ▁to ▁negoti ate ▁a ▁peace ▁treat y ▁in ▁ 1 6 2 2 . ▁ ▁The ▁Im b ang ala ▁bands ▁had ▁not ▁proved ▁as ▁ob ed ient ▁as ▁the ▁Portuguese ▁hoped ▁and ▁were ▁rav aging ▁far ▁and ▁wide ▁among ▁both ▁N d ongo ' s ▁lands ▁and ▁those ▁controlled ▁by ▁Portugal . ▁ ▁In ▁the ▁terms ▁of ▁the ▁agreement ▁N j ing a ▁negoti ated , ▁Portugal ▁agreed ▁to ▁withdraw ▁a ▁fort ▁at ▁Amb aca ▁which ▁M endes ▁de ▁Vas con cel os ▁had ▁founded ▁as ▁a ▁base ▁for ▁his ▁operations ▁against ▁N d ongo , ▁and ▁to ▁return ▁a ▁large ▁number ▁of ▁ser fs ▁( k ij iko ) ▁he ▁had ▁captured , ▁to ▁help ▁in ▁rest ra ining ▁the ▁Im b ang ala ▁operating ▁in ▁N d ongo , ▁and ▁allow ▁the ▁king ▁to ▁return ▁to ▁his ▁traditional ▁capital . ▁ ▁In ▁exchange ▁N d ongo ▁would ▁swe ar ▁v ass al age ▁to ▁Portugal ▁and ▁pay ▁ 1 0 0 ▁slaves ▁per ▁year ▁as ▁t ribute