Pakistan Adopted a New constitution on the 23rd of March in 1956. This constitution abolished the monarchy, making Pakistan a Republic in the Commonwealth of Nations. Pakistan left the Commonwealth on the 30th of January in 1972 over the Rebellious issue of the former East Pakistan province becoming a separate Independent Bangladesh. It re-joined on the 1st of October in 1989, then was Suspended from the Commonwealth twice: firstly from the 18th of October in 1999 to the 22nd of May in 2004 and secondly from the 22nd of November in 2007 to the 22nd of May in 2008-present.