▁the ▁largely ▁conserv ative ▁Navy . ▁Per on ism ▁was ▁b anned , ▁and ▁remained ▁so ▁until ▁ 1 9 7 2 . ▁ ▁In ▁ 1 9 5 8 ▁as ▁commander ▁of ▁Naval ▁Oper ations ▁of ▁the ▁Argent ine ▁Navy ▁he ▁was ▁involved ▁in ▁the ▁S ni pe ▁incident . ▁He ▁ordered ▁the ▁destruction ▁of ▁the ▁Chile an ▁l ighth ouse ▁and ▁its ▁replacement ▁with ▁an ▁Argent ine ▁one . ▁ ▁Return ▁to ▁Dem ocracy ▁ ▁Following ▁the ▁return ▁to ▁dem ocracy ▁with ▁the ▁election ▁of ▁President ▁Art uro ▁Fr ond izi , ▁Ro jas ▁remained ▁a ▁vocal ▁supp orter ▁of ▁military ▁action ▁to ▁prevent ▁the ▁return ▁of ▁Per on ism , ▁and ▁participated ▁in ▁a ▁failed , ▁April ▁ 1 9 6 3 ▁coup ▁attempt ▁against ▁President ▁José ▁María ▁Gu ido ▁( who ▁was ▁himself ▁appointed ▁in ▁Fr ond izi ' s ▁replacement ▁for ▁the ▁sake ▁of ▁prevent ing ▁a ▁Per on ist ▁res urg ence ▁at ▁the ▁pol ls ). ▁Following ▁Army ▁Chief ▁Juan ▁Carlos ▁O ng an ía ' s ▁defeat ▁of ▁the ▁coup ▁attempt , ▁Ro jas ▁was ▁conf ined ▁to ▁his ▁u pt own ▁Buenos ▁Aires ▁a partment , ▁after ▁which ▁he ▁largely ▁limited ▁his ▁contact ▁with ▁the ▁public ▁to ▁occas ional ▁columns ▁in ▁conserv ative ▁newsp apers ▁such ▁as ▁La ▁Pr ensa ▁and ▁La ▁N ación . ▁He ▁opposed ▁the ▁Ant ar ctic ▁Tre aty ▁of ▁ 1 9 6 1 ▁and ▁later ▁to ▁the ▁Be agle ▁Channel ▁Ar bitr ation . ▁He ▁was ▁founder ▁of