Easter Rising in putting the rising off for only a day, although it greatly reduced the number of Volunteers who turned out. British Naval Intelligence had been aware of the arms shipment, Casement's return, and the Easter date for the rising through radio messages between Germany and its embassy in the United States that were intercepted by the Royal Navy and deciphered in Room 40 of the Admiralty. The information was passed to the Under-Secretary for Ireland, Sir Matthew Nathan, on 17 April, but without revealing its source, and Nathan was doubtful about its accuracy. When news reached Dublin of the capture
Easter Rising centenary parade during the Rising in April 1916. A minute's silence was observed before the sounding of the Last Post. After the Irish flag was raised on top of the GPO, the Army No.1 Band played the national anthem, Amhrán na bhFiann while a flypast of 6 Pilatus PC-9 aircraft from the Irish Air Corps flew across the GPO to conclude the commemoration ceremony. Easter Rising centenary parade The Easter Rising centenary parade took place in Dublin city on Easter Sunday, 27 March 2016 to commemorate the centenary of the Easter Rising. It involved all branches of the Defence Forces, including the