Steel had a major impact on America during the 1900s. It was influential in the creation of the skyscrapers of the period, such as the Empire State Building. Also, US Steel was a major industrial partner abroad as well. During WWI, steel was one reason that both sides of the conflict courted the United States, though the country ultimately backed the Entente. Steel was also used in creating the United States' own battle fleet. During WWII US Steel exports and finished products made it to the battlefield well before the first American soldiers did. The steel industry, combined with the coal industry, was a major factor that drew people to the Midwest to work. When the United States started to look abroad for cheaper sources of steel, the Midwest began to decline, as its future was heavily tied to steel.