Roots:  (Ireland was partitioned into two countries: the Irish Free State, which was almost entirely Catholic, and the smaller Northern Ireland, which was mostly Protestant with a Catholic minority.) discrimination and unfair treatment by the Protestant-controlled government and police forces.  
 
Trunk (core problems) :  The ‘Troubles” For several decades, the leaders of the Protestant, unionist majority, discriminated against the Catholic, nationalist minority. The laws and institutions of the State reflected this discrimination. Police harassment, exclusion from public service appointments and other forms of discrimination were factors of daily life. Violence, riots, and deaths against people increased.
 
Effects(branches) : This explosive era was fraught with car bombings, riots and revenge killings that ran from the late 1960s through the late 1990s. Northern Ireland suffered dozens of car bombings and sectarian attacks perpetrated by paramilitary groups on both sides like the Provisional IRA and the Ulster Volunteer Force. Hundreds of civilians were among the dead. Thirteen protesters were killed and 17 wounded in a tragedy known as “Bloody Sunday.” The annual Apprentice Boys’ march in August 1969, civil unrest in Belfast became a three-day explosion of nationalist rioting. Many homes were burned. Bloody Friday’ – the simultaneous detonation of more than 20 PIRA bombs in Belfast – which claimed nine lives. There was a hunger strike in 1980. Loyalist bombs exploded in Dublin and Monaghan, ultimately claiming the lives of 32 people in the worst single outrage of the Troubles.
 
The Troubles came to an end, at least officially, with the signing of the Good Friday Agreement in 1998, which created a framework for political power-sharing and an end to decades of violence. In August 1998, four months after the Good Friday Agreement, The Real IRA carried out the most deadly attack since the start of The Troubles which was known as the The Omagh Bombing. At least 29 people were killed and several hundred injured in a c