The Bush administration is putting intense pressure on both Greeks and Turks in Cyprus to vote in favor of a reunification plan put forward by U-N chief Kofi Annan.
Cyprus has been divided since Turkish troops invaded the island in 1974.
The State Department points out the U-N plan offers reunification, while at the same time giving both Greeks and Turks considerable control over their own affairs.
Some quarters have been trying to rework parts of the U-N plan, but State Department spokesman Richard Boucher says there is no "plan B" -- insisting that it's a "final plan" for Cyprus.
Residents of Cyprus are to vote on the plan this month.