Meibion Glyndŵr

Meibion Glyndŵr (, also known by its translation Sons of Glyndŵr) was a Welsh nationalist group which carried out more than 200 arson attacks against English-owned holiday cottages in Wales. The organisation was founded in 1979, during a period of increasing nationalist sentiment in Wales. During this period, significant elements of Welsh public opinion were opposed to the purchase of holiday cottages in Wales by English people, perceiving it as being a major cause in increasing Wales' house prices. Members of Meibion Glyndŵr were responsible for setting fire to several English-owned properties in Wales from 1979 to the mid-1990s, with only one person connected to the group being arrested.

History
The group first came to prominence in 1979 after the Welsh devolution referendum. In the first wave of attacks, eight English-owned holiday homes were destroyed within the space of a month. In 1980, Welsh police carried out a series of raids in Operation Tân ("fire") in an effort to find the culprits. As part of the operation, Welsh nationalist and publisher Robat Gruffudd and his wife, Enid, were arrested and interrogated. The police were not able to find any evidence of the Gruffudds' involvement in the arson and released them; they were also compensated for their time. Within the next ten years around 220 properties were damaged by the campaign. It peaked in the late 1980s with the targeting of Conservative MPs' homes with letter bombs, most notably David Hunt, the then Welsh secretary, who was targeted in 1990.

Four separate movements claimed responsibility for the bombings: Mudiad Amddiffyn Cymru ("movement to defend Wales"), Cadwyr Cymru ("keepers of Wales"), Meibion Glyndŵr, and the Welsh Army for the Workers Republic (WAWR), whose attacks were on political targets in the early 1980s. Meibion Glyndŵr was the only group to have any claim to long-term success, although since the mid-1990s the group has been inactive, and Welsh nationalist violence has ceased, at least on an organisational level. Letters claiming responsibility for attacks were signed "Rhys Gethin", in homage to one of Owain Glyndŵr's most prominent followers.

A reinvestigation into postal bombings led to the conviction of Sion Aubrey Roberts in 1993. Roberts was sentenced to 12 years but was released after serving 8 years. He has maintained his innocence while expressing sympathy for Meibion Glyndŵr's cause. A Plaid Cymru member of parliament, Elfyn Llwyd, speculated that the group was an MI5 front.

Armed campaign

 * 1979–94: Meibion Glyndŵr fire-bomb around 220 English-owned homes.
 * 18 July 1980: Welsh militants firebomb the home of Welsh Secretary of State Nicholas Edwards, in his rest house in Abergavenny, Monmouthshire. On the same day, a Conservative Party in Cardiff is firebombed by the group.
 * 26 October 1981: An improvised device in an army recruiting office is defused in Pontypridd, prior to a visit by the Prince of Wales. Two days later another bomb is defused by authorities.
 * 28 June 1987: Welsh extremists leave two improvised devices in Abergele and Porthmadog.
 * 1988–89: Meibion Glyndŵr declare that "every white settler is a target". The group also places incendiary bombs in Conservative Party offices in London and estate agents' offices in London, Liverpool, Sutton Coldfield, Haverfordwest, Carmarthen and Llandeilo.
 * 18 March 1989; A series of arson attacks takes place in Sutton Coldfield, Haverfordwest, Liverpool and London.
 * 22 October 1989; A new ring of arson attacks begin, this time focusing on London.
 * 1990: Poet and Anglican priest R. S. Thomas calls for a campaign to deface English-owned homes.
 * 20–21 June 1990: Four letter bombs are received. Two are addressed to the Secretary of State for Wales and the Member of Parliament for Pembroke at the House of Commons, and one of the letters slightly wounds a woman. One is addressed to the Secretary of State for Wales David Hunt, and the last to Nicholas Bennett, both of which are defused.
 * 1993: Sion Aubrey Roberts, a member of Meibion Glyndŵr, is jailed for twelve years for sending letter bombs to Conservative politicians.

Books

 * Mae rhywun yn gwybod (Somebody Knows) by Alwyn Gruffydd (Gwasg Carreg Gwalch, 2004).
 * To Dream of Freedom by Roy Clews, 3rd edition, (Y Lolfa, 2004). Concentrates on MAC and the Free Wales Army in the 1960s. Includes interviews by participants.
 * 'Freedom Fighters: Wales's Forgotten War 1963–1993'', John Humphries (University of Wales Press, 2008). Looks at FWA, MAC and Meibion Glyndwr with many interviews and historical facts.
 * Wyn Thomas, 'John Jenkins: The Reluctant Revolutionary?' (Y Lolfa, 2019). Hardback: ISBN 978-1-912631-07-0; Paperback: ISBN 978-1-912631-14-8
 * Wyn Thomas, 'Hands Off Wales: Nationhood and Militancy' (Gomer, 2013). ISBN 978-1-84851-669-4
 * Wyn Thomas, 'Hands Off Wales: Nationhood and Militancy' (Y Lolfa, 2022). ISBN 978-1-80099-229-0
 * Wyn Thomas, 'Tryweryn: A New Dawn?' (Y Lolfa, 2023). ISBN 978-1-91263-148-3
 * Wyn Thomas, 'Tryweryn: A New Dawn?' (Y Lolfa, 2023). ISBN 978-1-91263-148-3