▁driven ▁out , ▁and ▁then ▁to ▁the ▁. ▁ ▁In ▁ 1 6 4 3 , ▁dec iding ▁it ▁was ▁not ▁worth while ▁to ▁continue ▁the ▁war ▁with ▁Portugal , ▁the ▁Dutch ▁signed ▁an ▁agreement ▁which ▁effectively ▁left ▁Portugal ▁in ▁command ▁of ▁the ▁interior ▁pres id ios . ▁ ▁However , ▁the ▁kingdom ▁of ▁N d ongo , ▁a ▁long time ▁enemy ▁of ▁Portuguese ▁amb itions , ▁then ▁led ▁by ▁Queen ▁N j ing a ▁ ▁fought ▁on ▁against ▁the ▁Portuguese ▁without ▁Dutch ▁help . ▁ ▁Following ▁her ▁defeat ▁at ▁K av anga ▁in ▁ 1 6 4 6 , ▁however , ▁the ▁situation ▁was ▁sufficiently ▁grave ▁that ▁the ▁Dutch ▁commander ▁decided ▁to ▁commit ▁forces ▁to ▁her ▁support . ▁ ▁Thus , ▁in ▁ 1 6 4 7 ▁a ▁combined ▁force ▁from ▁K ongo , ▁N d ongo , ▁and ▁a ▁Dutch ▁cont ing ent ▁of ▁over ▁ 8 , 0 0 0 ▁men ▁met ▁the ▁Portuguese ▁and ▁their ▁African ▁al lies ▁with ▁a ▁field ▁army ▁of ▁some ▁ 3 0 , 0 0 0 ▁men ▁somewhere ▁north ▁of ▁Mass ang ano ▁( the ▁battle field ▁has ▁not ▁yet ▁been ▁located ). ▁The ▁Portuguese ▁were ▁rout ed ▁by ▁the ▁al liance ▁and ▁over ▁ 3 , 0 0 0 ▁Portuguese ▁and ▁their ▁African ▁al lies ▁were ▁killed ▁or ▁wounded . ▁ ▁As ▁a ▁result ▁of ▁this ▁victory , ▁N zing a ▁and ▁her ▁army ▁were ▁able ▁to ▁lay ▁sie ge ▁to ▁three ▁of ▁the ▁Portuguese ▁pres id ios ▁in ▁Ang ola , ▁Amb