What was the basis for the violence in ireland in the 1900s?

The basis for the violence in Ireland in the 1900s is when Ireland and Northern Ireland disagreed about staying in the union.

In the 1900s Ireland moved towards civil war. The Ulster Volunteer Force was formed in 1913. In the South, nationalists formed the Irish Volunteers. Both sides obtained arms.

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the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.