The Armenian delegation will participate in the 55th annual session of the Parliamentary Assembly (PA) of NATO, Karen Avagyan told a PanARMENIAN.Net reporter MP from RPA. 55th Annual Session of NATO Parliamentary Assembly will be held from November 13 to 17 in Edinburgh, which will be attended by 340 parliamentarians from 28 NATO member countries. The session will be also attended by the delegations of the countries, partnering the Alliance.