i ql al ▁Party , ▁which ▁would ▁play ▁a ▁major ▁role ▁in ▁Mor oc co ' s ▁independence . ▁His ▁name ▁on ▁the ▁Pro clam ation ▁of ▁Independ ence ▁of ▁January ▁ 1 1 , ▁ 1 9 4 4 ▁got ▁him ▁arrested ▁along ▁with ▁other ▁party ▁leaders , ▁and ▁he ▁spent ▁more ▁than ▁a ▁year ▁in ▁prison . ▁After ▁his ▁liber ation , ▁as ▁the ▁first ▁Mor oc can ▁Muslim ▁gradu ate ▁in ▁mathematics ▁of ▁an ▁official ▁French ▁school , ▁he ▁became ▁a ▁professor ▁at ▁the ▁Royal ▁Academy ▁( , ▁), ▁where ▁the ▁future ▁king ▁of ▁Mor oc co ▁Hass an ▁II ▁was ▁one ▁of ▁his ▁students . ▁▁ ▁He ▁also ▁remained ▁an ▁activ ist ▁in ▁the ▁national ist ▁movement , ▁to ▁the ▁extent ▁that ▁the ▁French ▁General ▁Al phon se ▁Ju in ▁described ▁him ▁as ▁the ▁" en emy ▁# 1 ▁of ▁France ▁in ▁Mor oc co .” ▁Me h di ▁Ben ▁B ark a ▁was ▁put ▁on ▁house ▁arrest ▁February ▁ 1 9 5 1 . ▁In ▁ 1 9 5 5 , ▁he ▁participated ▁in ▁the ▁negoti ations ▁that ▁led ▁to ▁the ▁return ▁of ▁Muhammad ▁V , ▁who ▁French ▁authorities ▁had ▁ou sted ▁and ▁ex iled , ▁and ▁to ▁the ▁end ▁of ▁the ▁French ▁prote ctor ate . ▁▁ ▁He ▁left ▁the ▁Ist i ql al ▁Party ▁in ▁ 1 9 5 9 ▁after ▁cl ash es ▁with ▁conserv ative ▁oppon ents ▁to ▁found ▁the ▁left - wing ▁National ▁Union ▁of ▁Popular ▁Forces ▁( UN FP ). ▁ ▁In