Border campaign (Irish Republican Army)

Border campaign; (Operation Harvest)
Date	12 December 1956 – 26 February 1962; (5 years, 2 months and 2 weeks)
Location	Mainly Irish border
Result	British victory IRA campaign fails, hundreds of republicans interned;
Belligerents
Irish Republican Army	United Kingdom British Army; Royal Ulster Constabulary; Ulster Special Constabulary;
Commanders and leaders
IRA Army Council; Seán Cronin; Ruairí Ó Brádaigh	Insp.-Gen. Sir Richard Pim; Insp.-Gen. Sir Albert Kennedy (from 1961)
Strength
~Around 200 Volunteers	Several thousand troops 2,800 12,500+
Casualties and losses
8 IRA men killed, 4 republican civilians killed; Over 400 republicans interned in Northern Ireland, ~150 republicans interned in Republic of Ireland	6 RUC constables killed,; 32 wounded

The Border campaign (12 December 1956 – 26 February 1962) was a guerrilla warfare campaign (codenamed Operation Harvest) carried out by the Irish Republican Army (IRA) against targets in Northern Ireland, with the aim of overthrowing British rule there and creating a united Ireland. It was also referred to as the "resistance campaign" by some Irish republican activists. The campaign was a military failure, but some of its members felt it was justified, as it kept the IRA engaged for another generation.