drive a wedge

Definitions

1. To separate.
   idiomatic, often
2. To cause dispute or hostility between people.
   idiomatic, often

Equivalents

Examples

““German trade⟳ with China dwarfs all other member states, and Germany clearly drives policy on China in the E.U.,” said Theresa Fallon, director of the Center for Russia Europe Asia Studies in Brussels. Germany’s economic dependence on China “is driving a wedge in trans-Atlantic relations,” Ms. Fallon said.”

CEFR level