Dever's term in office saw many improvements to the city, including the completion of Wacker Drive, the extension of Ogden Avenue, the straightening of the Chicago River and the building of the city's first airport, Municipal Airport. He also fought against the corrupting influence of bootlegging and gangsters. Despite considering himself a "wet", he enforced prohibition since it was the law of the land. The media labeled his war on bootleggers as the "Great Beer War" and it resulted in a decline of crime.