Question: Between Phoenix Sky Harbor International Airport and Williamson County Regional Airport, which airport was renamed to honor veterans and better reflect the regional nature of the airport?
Sentence (from "Williamson County Regional Airport"): Veterans Airport of Southern Illinois (IATA: MWA, ICAO: KMWA, FAA LID: MWA) , formally known as the Williamson County Regional Airport, is five miles west of Marion, in Williamson County, Illinois.
Relevant evidence: Yes