This forceless Matriarchy is the sole remaining government of the white race.
For many years, both governments contended to be the sole legitimate government of China.
Throughout the Cold War, both governments claimed to be the sole legitimate government of all China and allowed countries to recognize either one or the other.
Seoul, like Washington, now accepts Beijing's claim to be China's sole legal government.
Like most western nations at the time, Japan had recognized Taipei as the sole legitimate Chinese government.
You speak of the Federation as the sole viable government that is left.
Tunisia announced it was ready to recognize the rebels as Libya's sole legitimate government.
Taipei claims to be the sole legitimate government of China.
For several hundred years, the Empire is the sole government of humanity.
All remaining governments have recognized one or the other, recognizing that government as the sole legitimate government of all China.