Actually kate people in Ireland did experience both World Wars. The country was supposedly neutral but was under pressure to support Britain and around 150,000 Irishmen joined the British army. This caused trouble in Britain because of racism against the Irish and at home because many in Ireland didn't want to support Britain because of interference in Ireland since the 17th century.
Both southern and northern Ireland were bombed especially Belfast because of the docks.
Whether they talked about it or not, Irish people have a long history of suffering of various kinds because of Britain, confiscated land, destruction of the education system, banning the Irish language, allowing landlords to turn people off their land, not helping during the Famine causing mass emigration, causing Civil War, using prisoners as police - the infamous Black and Tans, trying to stop Ireland's intention to become independent, etc, etc. As for the treatment of women and the notorious Magdalen Laundries!
A nation who have seen this sort of thing
are going to have a traumatised people as a result.
The country of Wexford still remembers the brutality of 30 000 people being slaughtered by the British Army in the
rebellion of 1798. Wexford is the size of Oxfordshire and the slaughter happened in a couple of weeks.
I often think about wars happening now, Ukraine, Palestine, Syria, Yemen, Sudan, Ethiopia, Armenia. All these places are going to have people who can't speak of what they've seen or done. Like Ireland, there will be secrets and shame and unfortunately people who have been damaged in childhood often do hurt their children and others because they can't deal with the pain they feel inside. It's a mainstream field in psychology now and acknowledging the past is the way forward although difficult to hear.