On 6 February 1918, Nimitz was appointed chief of staff and was awarded a Letter of Commendation for meritorious service as COMSUBLANT's chief of staff. On 16 September, he reported to the office of the Chief of Naval Operations, and on October 25 was given additional duty as senior member, Board of Submarine Design.
On 6 February 1918, Nimitz was appointed chief of staff and was awarded a Letter of Commendation for meritorious service as COMSUBLANT's chief of staff On 16 September, he reported to the offi.ce of the Chief of Naval Operations, and on October 25 was given additional duty as senior member, Board of Submarine Design.