▁US ▁in ▁the ▁light ▁of ▁criticism ▁from ▁the ▁Soviet ▁Union ▁around ▁ra cial ▁inequality ▁and ▁ra cial ▁t ension . ▁Dave ▁Br ube ck ▁also ▁participated ▁in ▁the ▁project , ▁and ▁( like ▁many ) ▁was ▁critical ▁of ▁the ▁experience . ▁He ▁and ▁his ▁wife ▁I ola ▁Br ube ck ▁later ▁wrote ▁The ▁Real ▁Amb ass adors , ▁a ▁musical , ▁about ▁it . ▁ ▁The ▁first ▁tour ▁began ▁in ▁March ▁ 1 9 5 6 ▁and ▁last ed ▁for ▁ten ▁weeks . ▁The ▁ 1 8 - pie ce ▁band ▁was ▁led ▁by ▁G illes pie ▁and ▁performed ▁in ▁ ▁Iran , ▁Pakistan , ▁Leb anon , ▁Turkey , ▁Y ug oslav ia , ▁and ▁Greece . ▁An ▁American ▁amb assador ▁reported ▁back ▁that ▁" Maybe ▁we ▁could ▁have ▁built ▁a ▁new ▁tank ▁for ▁the ▁cost ▁of ▁this ▁tour , ▁but ▁you ▁can ' t ▁get ▁as ▁much ▁good will ▁out ▁of ▁a ▁tank ▁as ▁you ▁can ▁out ▁of ▁D iz zy ▁G illes pie ' s ▁band ." ▁" A ▁few ▁years ▁later , ▁when ▁Louis ▁Arm strong ▁arrived ▁in ▁the ▁Congo ▁as ▁part ▁of ▁a ▁tour ▁through ▁Africa , ▁drum mers ▁and ▁d anc ers ▁par aded ▁him ▁through ▁the ▁streets ▁on ▁a ▁throne . ▁When ▁he ▁played ▁in ▁Kat anga ▁Province , ▁a ▁tr uce ▁was ▁called ▁in ▁a ▁long - standing ▁civil ▁war , ▁so ▁combat ants ▁on ▁both ▁sides ▁could ▁go ▁see ▁him ▁play ." ▁ ▁Since ▁then , ▁the ▁Bureau ▁of ▁Edu c ational ▁and ▁Cultural