On 20 March 1943 he took command of the destroyer USS Ammen on its commissioning. He commanded Ammen during the landings on Attu and subsequent operations in the Aleutian Islands.[4]
He was aboard USS Missouri when the Japanese surrender was signed.[2]
On 14 May 1949 he took command of the cruiser USS Salem on its commissioning.[6]
On 22 June 1952 Daniel joined the United Nations Command ceasefire delegation at Panmunjom replacing Admiral Ruthven E. Libby.[7]: 272 On 12 December 1952 he assumed command of COMSTSWESTPACAREA, succeeding Rear Admiral W.F. Paterson.[8] On 6 April 1953 he led the negotiations for the exchange of sick and wounded prisoners that culminated in Operation Little Switch which took place from 20 April to 3 May 1953.[7]: 414–9 He continued to be involved in the ceasefire negotiations leading the signing of the Korean Armistice Agreement on 27 July 1953.[7]: 423
He served as commandant of the 6th Naval District from 28 February 1958 until 30 September 1959.[9]
After moving to Fort Lauderdale, Florida after his military retirement, he died on 23 November 1992 at North Beach Hospital there from pneumonia and heart problems.[2] He was buried at Arlington National Cemetery on 30 November 1992.[1]
^"Ammen II (DD-527)". Naval History and Heritage Command. Retrieved 17 March 2021. This article incorporates text from this source, which is in the public domain.
^"Salem III (CA-139)". Naval History and Heritage Command. Retrieved 17 March 2021. This article incorporates text from this source, which is in the public domain.
^"Sixth Naval District". Naval History and Heritage Command. Retrieved 17 March 2021. This article incorporates text from this source, which is in the public domain.