Complex sentence: Ismail Khalidi (Ismail Ragib Khalidi) (1916-1968), a diplomat and a citizen of Saudi Arabia of Palestinian decsent, was a senior political affairs officer in the department of political and security council affairs of the United Nations.
Split into simpler sentences: Ismail Khalidi (Ismail Ragib Khalidi) (1916-1968), a diplomat and a citizen of Saudi Arabia of Palestinian decsent. He was a senior political affairs officer in the department of political and security council affairs of the United Nations.