Complex sentence: In this capacity he has undertaken two missions to date, one to Red Zone Baghdad to facilitate negotiations with Abdul Aziz al Hakim, the other to Jerusalem during the Summer War, during which he discussed matters relating to the Syrian track.
Split into simpler sentences: In this capacity he has undertaken two missions to date, one to Red Zone Baghdad to facilitate negotiations with Abdul Aziz al Hakim. The other to Jerusalem during the Summer War, during which he discussed matters relating to the Syrian track.