3. Irish Republican Army (IRA)

The Irish Republican Army (IRA) became a powerful symbol of resistance, fighting for Irish independence from British rule in the early 20th century. Over decades, their campaign evolved—from nationalist rebellion to the often-sectarian violence of the Troubles in Northern Ireland. The IRA’s tactics, blending urban guerrilla warfare and political negotiation, set them apart from other European separatist groups. Debate still surrounds whether their methods brought freedom or prolonged suffering, underscoring the blurred line between liberation and insurgency.