In July 1965 , he visited Salisbury for talks with Ian Smith , but these were unsuccessful and Smith declared UDI the following November .
Hughes was also involved in the negotiations to avert a unilateral declaration of independence in Southern Rhodesia .
In July 1965 , Hughes visited Salisbury for talks with Ian Smith , but these were unsuccessful and Smith declared UDI the following November .
Hughes was also involved in the negotiations to avert a unilateral declaration of independence in Southern Rhodesia .