Usually their movies dealt with finding a balance of power between their two strong characters.

VOA: special.2009.09.20

Europe depended on a balance of power to keep the peace.

VOA: special.2010.09.30

Russia says the European missile defense system changes the balance of power and threatens its nuclear arsenal.

VOA: standard.2010.03.26

Suddenly, it became almost impossible to criticize the legacy of the late president and this outburst of national emotions, after the disaster, changed the balance of power on the political scene."

VOA: standard.2010.06.17