From Halopedia, the Halo wiki
H.T. Ward was a Fleet Admiral of the United Nations Space Command Navy, and a member of the UNSC Naval Command.
In 2535, Ward transmitted UNSC Emergency Priority Order 098831A-1, a directive for UNSC personnel to read General Order 098831A-1 (the "Cole Protocol"), to all UNSC personnel.
By 2552, the same transmission by H.T. Ward was required reading as the UNSC was not taking any chances in protecting Earth and her colonies.