On 14 December 1955, as the 10th United Nations General Assembly drew to a close, Ireland took its place as the 63rd member of the UN. This marked the beginning of Ireland’s tradition of principled and distinctive engagement through the UN system on major international issues. Since that day, UN membership has remained a central pillar of Irish foreign policy.
The documents featured here tell the story of Ireland’s admission to the UN during an era of Cold War tension. Ireland’s first steps were shaped by the State’s strong anti-Communist stance, its support for the UN Charter, and its belief in a rules-based international system. Over the decades, Ireland has contributed through peacekeeping missions, three terms on the UN Security Council, and active engagement with global challenges—making support for the UN a defining feature of Irish foreign policy.
Telegram announcing Ireland’s UN membership
NAI/DFA/6/417/130
Ticker tape telegram sent to Dublin on 14 December 1955 announcing that Ireland had become a member of the UN. Sent by Ireland’s Ambassador to the United States, John Hearne (telegraphic address ‘Hibernia’), to the Department of External Affairs at Iveagh House (‘Estero’).
Image caption: Telegram confirming Ireland’s admission to the UN, 14 December 1955.
Ireland’s admission to the United Nations in 1955 was a milestone that shaped our international identity. Today, as Ireland continues to champion peacekeeping, human rights, and multilateral cooperation, these documents remind us of the enduring importance of principled engagement in global affairs.