New Taoiseach Seán Lemass took the unusual step of intervening in a Foreign Affairs debate in July 1959 to defend Frank Aiken’s conduct at the United Nations. Trenchant critics on the opposition benches in the Fine Gael party had berated Aiken repeatedly since 1957. Critics inside and outside of the lower house of parliament (Dáil Éireann) asserted that Ireland, “a tiny country” with limited interests, had no right to voice an opinion on global matters which was more appropriately dealt with by the “Great Powers.” Worse, Aiken’s interventions would create enemies among Irish friends worldwide, most notably in the United Sstates. The tenor of the arguments was that Ireland had no nuclear energy industry and no nuclear weapons aspirations, so such matters should be left to the nuclear powers. It is difficult to avoid the sense that elements in Irish political life appreciated that American and NATO nuclear forces informally protected the anti-communist Republic of Ireland. Lemass ended speculation that he was less of a supporter of Aiken than his predecessor, de Valera. He affirmed that Ireland had a significant contribution to make to the global commons in terms of reinforcing peace and order. Aiken was empowered to continue.

Aiken’s landmark address to the plenary of the UN General Assembly on 19 September 1958 launched his non-proliferation campaign. It is the first time he publicly identified stopping the spread of nuclear weapons as a concrete step in the collective interest to unblock the disarmament impasse, preventing a runaway arms race among the powers of the Earth. It was clearly framed as part of his wider campaign for global governance based on the rule of law rather than the threat of force. For Aiken, the challenge was stabilizing the arms race and generating trust to construct a world order based on justice and law – “to preserve a Pax Atomica while we build a Pax Mundi.” This speech was a critical departure. The widespread positive reception encouraged Aiken, persuading him to draft a formal resolution.

Two "Notes for the Record" from March 1, 1967, describe the vigorous discussions between senior UK government figures, including Harold Wilson, Foreign Secretary George Brown, Minister of State for Foreign and Commonwealth Affairs Lord Chalfont, and chief scientific adviser to the government Solly Zuckerman. Brown argued that "our posture on the matter should be distinctively European rather than one of supporting the United States against other European countries." Wilson was even more explicit, stating that "our approach should be that of a European power discussing the matter with European partners and not seeking to fight American battles." Wilson was keen to let Washington take the lead so that his government might avoid upsetting the French, as had happened with the debates over De Gaulle's 1966 withdrawal from the NATO command structure.

Bishara Bahbah is a Palestinian professor. He was the associate director of Harvard’s Middle East Institute and served as a member of the Palestinian delegation to the Arms Control and Regional Security (ACRS) talks following the Oslo Accords.

Member of South Africa’s delegation to the 1995 NPT review conference.

Chairperson of the subcommittee for "Disarmament, Arms Control, and Nonproliferation" of the Foreign Affairs Committee of the German Bundestag.

One of the drafters of the Treaty on Non-Proliferation of Nuclear Weapons.

Deputy head of the nuclear non-proliferation section of the economic department in the German Federal Foreign Office.

Expert member of the German delegation to the NPT review conference.

Considering proposal that India become a Permanent Observer of the Organization of American States.