United Federation

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The flag of United Federation, as seen in Shadow the Hedgehog.

The United Federation presidential palace as seen in Shadow the Hedgehog.

The capital, Central City, as seen in Sonic Battle.

The United Federation is effectively the U.S.A. of Sonic's world. Populated by humans, the Federation is led by a President who works from a building highly reminiscant of the American White House. G.U.N. appears to function as the Federation's military.

It is worth noting that the United Federation doesn't appear to be a 'World State'; in Sonic the Hedgehog (2006), Soleanna is strongly implied to be a wholly independent nation with its own monarchy. G.U.N. dosn't seem in too much of a rush to help the inhabitants of Monopole during Sonic Riders: Zero Gravity either.

Notable Locations

• Central City (Capital)
  • Emerald Town, Night Babylon, Gimme Shelter (Sonic Battle)
  • City Escape, Mission Street, Radical Highway, Route 280, Route 101 (Sonic Adventure 2, although the city featured in that game is never explicitly named as Central City)
• Westopolis
  • Lethal Highway
• GUN Fortress
• Prison Island
  • Iron Gate, Metal Harbor, Prison Lane, Weapons Bed, Security Hall, White Jungle, Green Forest

The Space Colony ARK was also a United Federation project until it was shut down fifty years ago, though it now lies abandoned and inhabited by nothing but Artificial Chaos.