Most of the princely states in the western part of empire ( Pakistan ) merged into the Province of West Pakistan on 14 October 1955 and the new nation was declared a republic within a year .
Some of the frontier states continued to be administered as separate units .
Most of the princely states in the western part of empire ( Pakistan ) merged into the Province of West Pakistan on 14 October 1955 and the new nation was declared a republic within a year although some of the frontier states continued to be administered as separate units .