The balance of power
What's the meaning of the phrase 'The Balance of power'?
The distribution of power between nations in such a way that no single state has dominance over the others.
What's the origin of the phrase 'The Balance of power'?
Of uncertain origin, but dating back to at least the early 18th century; for example, this piece from the The London Gazette, 1701:
"Your Glorious Design of Re-establishing a just Ballance of Power in Europe."