How did Sir Robert Watson-Watt help introduce operations research to the United States?

Sir Robert Watson-Watt played a significant role in the introduction of operations research to the United States during World War II. Having been a pioneer in the field—he is credited with helping launch the first operational studies of radar in 1937 and naming the discipline—Watson-Watt visited the United States in 1942.1

During this visit, he actively urged the U.S. War and Navy departments to adopt operations research as a formal practice. His advocacy, combined with reports from American observers in London and the circulation of P.M.S. Blackett’s influential memorandum, "Scientists at the Operational Level," helped stimulate the establishment of formal operations research groups within the U.S. military.1