This article offers an analytical comment on Marco Mugnaini’s ONU: Una Storia Globale, a work that stands out for its historical depth and its ability to frame the United Nations as a dynamic actor within a constantly transforming international system. Far from being a simple institutional history, the book provides readers with a multidimensional understanding of the UN, combining historiographical rigor with political analysis and a broad, interdisciplinary approach.

A Structural and Multidisciplinary Starting Point

One of the most compelling aspects of Mugnaini’s book is its initial theoretical and methodological framing. The author does not treat the United Nations as an entity that emerged out of nowhere in 1945, nor as an institution whose functions can be adequately understood through its legal structure alone. Instead, he situates the UN within the longer and broader history of international organizations. This approach is particularly valuable because it challenges the common perception of the UN as an isolated, almost exceptional institution. Mugnaini reminds us that international cooperation, and the structures built to support it, developed gradually in response to the evolving needs of states and societies.

In this context, Mugnaini places significant emphasis on the twentieth century, which he describes as the “century of international organizations.” During this period, the world witnessed unprecedented interdependence, the collapse of empires, and the rise of new governance mechanisms that operated above and beyond the nation-state. The UN system, he argues, is the culmination of these processes: a historical product shaped by wars, diplomatic experiments, ideological clashes, and changing power constellations.

Another strength of the first section lies in its conceptual clarity. Mugnaini distinguishes meticulously between different types of international organizations – intergovernmental organizations (IGOs), international non-governmental organizations (INGOs), and non-governmental organizations (NGOs) – explaining their differing origins, objectives, and operating logics. He ties this mapping to the major theoretical currents in the academic literature: the reformist perspective, which sees IOs as tools for improving cooperation; the radical perspective, which views them as mechanisms reproducing global inequalities; and the realist perspective, which considers them secondary to the interests of powerful states. By presenting these approaches side by side, Mugnaini shows how the study of IOs is deeply shaped by historical context and by the intellectual debates of each era.

This first part does an excellent job reminding readers that IOs are not static. Their roles evolve alongside global political and economic transformations. The rise of regionalism, for example, illustrates how states use both global and regional platforms to advance different political or economic agendas. Rather than viewing regional organizations as competitors to the UN, Mugnaini sees them as part of a broader ecosystem of governance that reflects the complexity of contemporary international relations.

Reconstructing the UN’s Historical Trajectory

The second part of ONU: Una Storia Globale forms the core of the book and provides a detailed historical reconstruction of the United Nations’ evolution from its founding to the present day. Mugnaini traces the organization’s origins to the experience of the Second World War, highlighting how both the failures of the League of Nations and the political compromises among the victorious powers shaped the UN Charter. He underscores the fact that the UN emerged not only from idealistic aspirations for peace but also from a pragmatic need to stabilize international politics in a world divided among the great powers.

A notable contribution of this section is its attention to the UN’s internal contradictions. Mugnaini does not shy away from highlighting the tension between the organization’s noble goals – peace, development, human rights – and the structural constraints imposed by the Security Council, the veto power, and geopolitical rivalries. These contradictions, he argues, are not accidental flaws but intrinsic features of an institution built upon both principles and power politics.

Mugnaini’s historical account pays particular attention to the process of universalization. As the number of member states expanded, especially during the decolonization wave of the 1950s and 1960s, the internal dynamics of the UN changed dramatically. The rise of newly independent states reshaped debates within the General Assembly, shifting the balance toward a more diversified and global representation. This transformation is crucial for understanding the UN’s political evolution, as it introduced new agendas – development, economic justice, sovereignty – that did not exist in the same form in the early postwar years.

One of the most striking passages of this section is the analysis of the transformations in the Security Council. Mugnaini examines the famous 1963–1965 reform (often referenced through Resolution 1991), which expanded the number of non-permanent seats. He highlights how this change reflected the geopolitical realities of the time, including the growing influence of the Global South. He also provides a nuanced discussion of one of the most iconic membership controversies in UN history: the representation of China. The resolution that transferred the Chinese seat from Taipei to Beijing in 1971 is presented not just as a diplomatic event, but as a turning point that encapsulates the complexity of Cold War politics and the struggle for legitimacy in global institutions.

Mugnaini also offers a highly relevant examination of the relationship between the UN and the Bretton Woods institutions. By placing political and financial governance side by side, he shows how postwar global order was built on two complementary but sometimes competing pillars: one centered on diplomacy and peace, the other on economic stability and development. This duality continues to shape international governance today, often generating tensions between political goals and economic priorities.

A Thematic Deepening of the UN’s Functions

The third part of the book, added in the second edition, enriches the volume with a thematic approach that complements the historical narrative. Mugnaini explores how the UN operates in specific domains such as peacekeeping, human rights, social policies, and development. This allows readers to see how historical processes translate into concrete tools and policies.

In this section, Mugnaini stresses the importance of understanding the UN not only as a diplomatic forum but also as a vast operational system involving agencies, programs, and specialized bodies. He suggests that any meaningful analysis of the UN must go beyond the Security Council and consider the broader “UN family,” whose work shapes countless aspects of global life—from humanitarian assistance to public health to cultural preservation.

A Rich and Timely Contribution

Taken as a whole, ONU: Una Storia Globale is a robust and thought-provoking contribution to the study of international organizations and to the historical understanding of the United Nations. Mugnaini’s writing manages to be both rigorous and accessible, offering readers a conceptual framework, a historical narrative, and thematic insights that together form a comprehensive picture of the UN system.

One of the book’s greatest strengths is its ability to portray the UN as neither a naïve embodiment of global ideals nor a powerless institutional relic. Instead, Mugnaini presents the UN as a complex arena where principles, power, constraints, and possibilities constantly intersect. This perspective is particularly valuable in an era when multilateral institutions face unprecedented challenges—from geopolitical fragmentation to mistrust in global governance.

Ultimately, Mugnaini invites readers to rethink the UN’s role in contemporary international relations. The organization may be imperfect, contradictory, and often paralyzed, but it remains a crucial mirror of the world’s political realities. It is not a relic of the twentieth century; it is a living institution whose evolution continues to shape and be shaped by the global order.

For scholars, students, and anyone with an interest in world politics, ONU: Una Storia Globale provides not only a historical account but also a critical lens through which to understand the UN’s enduring relevance.