Answer:Herbert Hoover was living in London during the early stages of World War I because he had been in Europe on a business trip when the war broke out, and was unable to return to the United States due to the disruption of transportation and communications caused by the conflict.
During his time in London, Hoover became involved in efforts to provide relief to the people of Belgium, which was under German occupation. Hoover saw the suffering of the Belgian people firsthand and was deeply moved by their plight. He recognized the urgent need for food and other basic supplies, and worked tirelessly to organize relief efforts.
Hoover played a pivotal role in coordinating the Commission for Relief in Belgium, which was established to provide food and other assistance to the Belgian people. He worked closely with the British government, as well as with private organizations and individuals, to raise funds, secure transportation, and distribute supplies to those in need.
Under Hoover's leadership, the Commission for Relief in Belgium was able to provide food and other aid to millions of people, helping to alleviate the suffering caused by the war. His efforts in Belgium earned him widespread recognition and respect, and helped to establish his reputation as a humanitarian and a skilled organizer.