However , after the troops had left in June 1956 and the Egyptians nationalised the Canal a month later , Powell opposed the attempt to retake the canal in the Suez Crisis .
Powell thought the British no longer had the resources to be a world power .
However , after the troops had left in June 1956 and the Egyptians nationalised the Canal a month later , Powell opposed the attempt to retake the canal in the Suez Crisis because he thought the British no longer had the resources to be a world power .