Oz is the postwar Australia, dominated by the Sydney-Melbourne Conurb megacity. Several other cities and towns exist outside of the conurb. It is part of the Hiroshima Accord. The centre of the country is the Radback: a vast nuclear desert. Ozzers are known for being laid back and irreverent, and their society is one of the most free and relaxed on Earth. Skysurf legend Chopper took sanctuary there as a result. The main newspaper in Sydney-Melbourne is the Oz Observer, , local beer includes Thunderchunder XXXX, and one of the main airports is Ozport.