The sultans of the two major states in the Hadhramaut ( part of the Aden Protectorate ) objected to this since they were sovereigns in their own right .
Were not subjects of the King of the United Kingdom .
The sultans of the two major states in the Hadhramaut ( part of the Aden Protectorate ) objected to this since they were sovereigns in their own right and were not subjects of the King of the United Kingdom .