Long before anyone used the phrase “international relations,” human groups were already working out, through trial and constant error, how to deal with people outside their own circle. Tracing that story from its earliest roots to the birth of the modern state system says a great deal about why international relations looks the way it does today.
From Wandering Tribes to the First City-States
In the earliest period we have any record of, there was no real separation between religion, law, and custom – people simply followed whatever their faith permitted, and rulers doubled as religious heads of their community. Tribes chose their own leaders and fought their own wars with neighboring tribes. Because these early groups were largely nomadic, following pasture and water rather than staying rooted in one place, conflict and settlement both had a temporary, shifting quality to them; a tribe might occupy a location only until the grazing ran out, then move on.
The real turning point came with agriculture. Once people learned to farm, they had a reason to stay put, and settled cultivation gradually produced the first state-like communities in the modern sense. These early communities didn’t stay isolated from each other for long – war and expansion followed, with stronger tribes absorbing or enslaving weaker ones, and small, single-lineage chiefdoms slowly grew into larger, more diverse political communities that could no longer be described as one bloodline or one clan. Between these growing states, patterns of war and peace took shape, war generally settled by whichever side had the greater strength, alongside the beginnings of trade and religious exchange. Egypt, Babylon, Persia, China, India, and the states of Central Asia were among the earliest civilizations to develop this kind of settled, state-to-state interaction – the direct ancestors, in a real sense, of everything that later came to be called international relations.
The Middle Ages: Faith, Power, and a New Islamic Brotherhood
The medieval period, running roughly from the fifth to the fifteenth century, was defined largely by religion. Much of Europe adopted Christianity during this stretch, and religious difference became one of the era’s defining fault lines – an age, in significant parts of Europe, of real religious intolerance, including the persecution of those judged heretical, and recurring conflict between kings and the authority of the Church, with victory shifting between throne and altar depending on the century and the country.
At the same time, in the Middle East and West Asia, a powerful new Islamic state was taking shape. The spread of Islam brought with it a distinctive form of international relations of its own: a sense of Muslim brotherhood that, through shared religious devotion and loyalty, cultivated something closer to a genuinely global, humanitarian outlook – one that in principle rose above the divisions of race and geography that so often defined relations elsewhere in the same period.
From around 1500 onward, extensive political and economic change reshaped the picture further. The long struggle between kings and the Church gradually narrowed the Church’s temporal power down to a small, defined territory – what eventually became Vatican City – and the papacy lost its earlier ability to appoint its own representatives within other kingdoms, even as monarchs stopped depending on papal blessing to legitimize their rule. Much as the old Byzantine order eventually broke apart into smaller successor states with their own distinct political, commercial, and diplomatic relationships, Europe’s medieval religious-political order was giving way to something new.
Westphalia: The Birth of the Modern State System
That “something new” arrived in fairly dramatic fashion with the Thirty Years’ War (1618–1648), a conflict that drew in Germany, Poland, Lithuania, Sweden, and the Habsburg emperors, and left several participants as considerably stronger, more consolidated national states by its end. The war’s conclusion, the Peace of Westphalia in 1648, is often treated as the true starting point of the modern international system: it broke the Habsburg and Holy Roman imperial hold over a number of European territories and formally recognized the sovereignty of individual monarchs, freeing them from subordination to any higher religious authority. From Westphalia onward, Europe operated under a genuinely new kind of political order – one built around relations between formally sovereign states, rather than around a shared religious hierarchy sitting above them.
For roughly a century and a half after that, the prevailing political theory was that kings ruled by divine right, answerable to God alone and free to pursue their state’s wealth and territory largely without domestic constraint. That mindset, combined with a hunger for gold, fed the age of colonial expansion, as France, Britain, and Spain competed for dominance, and Russia, transformed under rulers such as Peter the Great and Catherine the Great, emerged as a major power in its own right.
1789 and the End of the Old Order
The French Revolution of 1789 broke that pattern decisively. Political power increasingly shifted away from hereditary monarchy and toward republican forms of government, and the scope of what a government was expected to control expanded accordingly, driven by new political ideas that were rapidly gaining ground. Diplomacy, military strategy, and an emerging body of international law all grew more prominent in this period, giving international relations something it had never quite had before: a defined, if still evolving, set of rules governing how states were expected to behave toward one another.
Vienna and the First Real Balance-of-Power System
That new order was given formal shape at the Congress of Vienna, which brought European heads of state together from 1814 into 1815 and continued meeting periodically until 1822 – the first genuinely collective gathering of its kind in European history. States that had fought against the victorious coalition were left out of the settlement, and the congress used the occasion to set out new rules of international law and to define, for the first time in a systematic way, the responsibilities of diplomatic representatives. To keep the resulting peace, Russia, Britain, Prussia, and Austria formed the Quadruple Alliance in 1815, later joined by a restored France. That alliance held off major war for a period of years, until revolutionary and republican movements elsewhere began to strain it, and the gradual rise of Germany, Italy, and Japan, alongside the accelerating decline of the Ottoman Empire, opened the door to a new wave of small, independent, and increasingly republican states entering the international system – setting the stage for the far more crowded and competitive world of nineteenth- and twentieth-century international relations.
No Comments