Walpole 's anti-war views were considered by the Opposition to have contributed to his poor prosecution of the war effort .
News of the defeat at Cartagena was a significant factor in the downfall of the British Prime Minister Robert Walpole .
Robert Walpole 's anti-war views were considered by the Opposition to have contributed to his poor prosecution of the war effort .
News of the defeat at Cartagena was a significant factor in the downfall of the British Prime Minister Robert Walpole .