(In a paragraph) how has nationalism change the Irish view of war from when they were fighting for England when they were fighting for the United States

Irish nationalism is a nationalist political movement which asserts that the Irish people are a nation and espouses the creation of a sovereign Irish nation-state on the island of Ireland. Irish nationalism celebrates the culture of Ireland, especially the Irish language, literature, music, and sports. It grew more potent during the period in which all of Ireland was part of the United Kingdom, which led to most of the island seceding from the UK in 1921.

Irish nationalists assert that foreign rule has been detrimental to Irish interests. Politically, Irish nationalism gave way to many factions which created conflict, often violent, throughout the island. The chief division affecting nationalism in Ireland was religious. The majority of the island's population was Roman Catholic, which is the part that seceded, but a portion of the northern part has a Protestant majority that elected to stay a part of the United Kingdom. Since the partition of Ireland, Irish nationalism often refers to support for Irish reunification.