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 Belfast and other towns celebrating the actions of Pearse and his comrades, and annual parades in remembrance of the Rising. The Irish government, however, discontinued its annual parade in Dublin in the early 1970s, and in 1976 it took the unprecedented step of proscribing (under the Offences against the State Act) a 1916 commemoration ceremony at the GPO organised by Sinn Féin and the Republican commemoration Committee. A Labour Party TD, David Thornley, embarrassed the government (of which Labour was a member) by appearing on the platform at the ceremony, along with Máire Comerford, who had fought in the Rising,