Did any group in the UK oppose Falklands war?
If Yes,
- Were they political groups or non-political/human-rights groups?
- What was their rationale/objective?
- did they gain any public support?
- Were they arrested?
Did any group in the UK oppose Falklands war?
If Yes,
On the 3rd April 1982, at the time of the onset of formal conflict in the area of the Falkland Islands (or to the Argentinians, the Malvinas) Margaret Thatcher's Conservative government obtained the support of Michael Foot (the leader of the opposition Labour party), as well as the SDP, its centrist breakaway offshoot, and the third largest parliamentary party. This meant there was no mainstream opposition within Westminster.
This didn't mean, however, that the idea of a conflict in the South Atlantic was universally popular with MPs, either on the left, or the right of the House. Opposition ranged from conscientious objection to war, to a realisation of the large potential economic, human and political downsides of a failed military campaign.
Outside of Westminster, opposition to Mrs. Thatcher's policies came primarily from her natural opponents on the political left, either objecting to war in general, or to a war with strong perceived colonial overtones. Human rights as such doesn't seem initially to have been a primary general motive, since the Argentinian soldiers were military invaders, who had interned the residents of the islands. This changed to some extent with the sinking of the light cruiser General Belgrano by the submarine HMS Conqueror. This sinking killed a large number of conscripted Argentinian soldiers, and has been a matter of considerable controversy in the intervening years since.
The parliamentary opposition was certainly allowed its view, but undoubtedly, some protesters were arrested during demonstrations. Of course, the authorities viewpoint is that they were arrested for their actions rather than their views or their peaceful expression of them.
Sinn Féin (and therefore presumably the IRA) took the Argentinian side in the Falklands War, although it was not a major policy and seems to have been mostly an anti-British and anti-colonial policy, rather than strong support for Argentina. Sinn Féin are an Irish Republican group and the political wing of the IRA, then a terrorist organisation. Sinn Féin are active in Northern Ireland, part of the UK.
So Sinn Féin gives an example of a group that not only opposed the war, but supported the "other side". Across the border, Fianna Fáil also supported the Argentinian side. At the time, Sinn Féin were getting about 10% support in Northern Ireland.
Members of Sinn Féin were not arrested for their support for Argentina. However IRA member were arrested (as the IRA was a proscribed organisation)