i think that the answer is providing medical care to wounded soldiers
The prime energy source at the time was coal. As the Industrial Revolution began to speed up, the need for coal grew because it provided power for the factory engines, steam powered ships and steam locomotives. Second, the demand for iron increased. ... At a later stage, iron was needed to construct the steamships.
Lincoln Steffens exposed corruption in municipal governments in the United States. He is also remembered as supporting the Soviet Union in it's early days. Steffens was a journalist and tried to create emotion amongst the readers by exposing corruption in urban areas in the United States.
US planes destroyed Japanese aircraft carriers and defeated the Japanese navy. “Island-hopping” was used to capture Japanese-held islands.
