▁met ▁with ▁President ▁Ferdinand ▁Mar cos ▁in ▁a ▁state ▁visit ▁by ▁the ▁latter ▁to ▁Japan ▁in ▁ 1 9 6 6 ▁- ▁a ▁year ▁after ▁Mar cos ' ▁election ▁and ▁about ▁six ▁years ▁before ▁Mar cos ▁declared ▁mart ial ▁law . ▁ ▁In ▁ 1 9 7 2 , ▁Mar cos ▁abol ished ▁the ▁Philipp ine ▁legisl ature ▁under ▁mart ial ▁law , ▁and ▁took ▁on ▁its ▁legisl ative ▁powers ▁as ▁part ▁of ▁his ▁author itar ian ▁rule . ▁He ▁rat ified ▁the ▁Tre aty ▁of ▁Am ity , ▁Com merce ▁and ▁Navigation ▁ten ▁days ▁prior ▁to ▁a ▁visit ▁of ▁Japanese ▁Prime ▁Minister ▁K ak ue i ▁Tan aka . ▁ ▁By ▁ 1 9 7 5 , ▁Japan ▁had ▁disp la ced ▁the ▁United ▁States ▁as ▁the ▁main ▁source ▁of ▁invest ment ▁in ▁the ▁country . ▁ ▁Mar cos ▁administration ▁projects ▁put ▁up ▁during ▁this ▁time ▁include ▁the ▁Philippines - J apan ▁Friend ship ▁Highway ▁which ▁included ▁the ▁construction ▁of ▁the ▁San ▁Juan ico ▁Bridge , ▁and ▁the ▁Research ▁Institute ▁for ▁Trop ical ▁Medicine . ▁ ▁However , ▁many ▁of ▁these ▁projects ▁were ▁later ▁critic ized ▁for ▁helping ▁prop ▁up ▁the ▁cor rupt ▁practices ▁of ▁the ▁Mar cos ▁administration , ▁resulting ▁in ▁what ▁became ▁called ▁the ▁Mar uk os u ▁gi w aku ▁( マ ル コ ス <0xE7> <0x96> <0x91> <0xE6> <0x83> <0x91> ), ▁or ▁" Mar cos ▁sc andal ", ▁of ▁ 1 9 8 6 . ▁ ▁Japan ▁O DA ▁sc andal ▁▁ ▁When ▁the ▁Mar cos es ▁were