Anglesey Sqn Search and Rescue Helicopters, both units providing employment for about 500 civilians. RAF Valley is now the headquarters of 22 Sqn Search and Rescue. There is a wide range of smaller industries, mostly located in industrial and business parks, especially at Llangefni and Gaerwen. These include an abattoir and fine chemical manufacturing, as well as factories for timber production, aluminium smelting, fish farming and food processing. The island is also on one of the major routes from Britain to Ireland, via ferries from Holyhead, off the west of Anglesey on Holy Island, serving Dún Laoghaire and Dublin Port. Much
Anglesey been divided into the "cantrefi" of Aberffraw, Rhosyr and Cemaes. During the First World War, the Presbyterian minister and celebrity preacher John Williams toured the island as part of an effort to recruit young men to volunteer for a “just war”. German POWs were kept on the island. By the end of the war, approximately 1,000 of the island's men had died while on active service. In 1936 the NSPCC opened its first branch on Anglesey. During the Second World War, Anglesey received Italian POWs. The island was designated a reception zone, and was home to evacuee children from Liverpool