In Great Britain and Ireland there will be Special Event Stations to Commemorate the 100th Anniversary of the sinking of the RMS Lusitania. She sailed to New York on 1st May from Liverpool when she was torpedoed and went down. 123 US citizens lost their lives.
An amateur radio special event station will operate from the Lusitania home port of Liverpool with the call sign GB100MFA and I understand in the Republic of Ireland EI100MFA as the survivors were taken ashore in Queenstown.
More About The Lusitania: http://en.wikipedia.org/wiki/Sinking_of_the_RMS_Lusitania