NUMBER@1 September NUMBER@2 President of ORGANIZATION@1 In NUMBER@3 , PERSON@1 became joint-vice-president of ORGANIZATION@1 and he became a key figure in directing a challenge to the ORGANIZATION@1 leadership of President PERSON@2 and joint-Vice President PERSON@3 .

NUMBER@1 September NUMBER@2 President of ORGANIZATION@1 In NUMBER@3 , PERSON@1 became joint-vice-president of ORGANIZATION@1 and he led a challenge to the ORGANIZATION@1 leadership of President PERSON@2 and joint-Vice President PERSON@3 .
