The Building Blocks of a Nation-State: Population and Territory

Plato once observed that the state does not grow out of the ground like a tree or a plant – it is made, entirely, from the conduct of human beings living together. Stripped of the philosophy, a working definition of the state that most political scientists would accept runs something like this: a state is a body of people, settled permanently in a particular territory, organized under a government that holds authority over all of them, and answerable to no outside power. Tucked inside that single sentence are four separate ingredients, and a political unit that is missing even one of them cannot properly be called a state at all – population, territory, government, and sovereignty.

Population: How Many People Does a State Need?

A state without people is a contradiction in terms, since the state is really just the name given to a particular kind of organized human community. That much is settled. What has never been settled is how many people a state actually needs. Aristotle wrestled with the question in antiquity and never landed on a fixed number, arguing only that a state should be large enough to be self-sufficient and small enough that its citizens could still know one another and govern themselves sensibly – a standard that later history simply ignored.

The real world today runs the numbers to both extremes. Among the roughly two hundred states currently in existence, some carry populations barely into five figures – Saint Kitts and Nevis, Nauru, and Tuvalu sit near the bottom of the list, with populations numbering in the few thousands to a few tens of thousands. At the other end, China and India each hold populations in the hundreds of crores, with the United States, Indonesia, and Brazil not far behind. Nothing about statehood itself requires a particular population size; a state’s population simply is what its history, geography, and economy have produced.

Whatever its size, a state’s population is never a single undifferentiated mass. It sorts into three broad categories. Citizens are the people who hold full political and civil rights within the state – the right to vote, to hold office, to claim the state’s protection as a matter of course. Nationals or subjects occupy a narrower category: bound to the state and owing it allegiance, but without the complete bundle of rights that citizenship confers, a status that described colonial populations for much of modern history. Foreigners, finally, are present in a state’s territory only temporarily, and hold no claim to its political rights at all.

Territory: Why a State Needs a Fixed Address

The second essential element is territory. A people can only become a state once they settle permanently on a defined piece of land; a population that keeps moving, with no fixed base to govern, cannot organize the kind of lasting institutions statehood requires. This is precisely why nomadic and wandering peoples throughout history, however large or well-organized, have struggled to build states in the conventional sense – and why peoples who eventually did settle on a claimed homeland, even after centuries of dispersal, treated that act of settlement as the decisive step toward statehood. The modern state of Israel, established in 1948 after decades of Zionist settlement activity, the 1917 Balfour Declaration, and British and American support in the aftermath of the Second World War, is the clearest twentieth-century illustration of territory functioning as the missing piece that finally completes a claim to statehood – and, in the same breath, a reminder of how contested and consequential that piece can be, since the same territorial claim that founded one state produced the unresolved Palestinian displacement that still shapes Middle Eastern politics today.

History offers the reverse lesson too. The Mongol Empire built by Genghis Khan collapsed into fragments almost immediately after his death, not for lack of military power but because it was never anchored in a settled, permanently administered territory – a conqueror’s temporary control is not the same thing as a state’s lasting title. Arab tribal conquerors who settled and built lasting administrative structures in Spain, by contrast, established a dynasty that endured for centuries. The lesson repeats across history: conquest without settlement fades, while settlement, even modest settlement, can outlast an empire.

Territory does not have to be large, compact, or even physically contiguous to sustain a functioning state – modern transport and communication have made scattered or oddly shaped territory far easier to govern than it once was. States range from Monaco, Nauru, and the Vatican City, each barely a few square miles, to Russia, China, Canada, the United States, and Brazil, each spanning millions. But territorial size has never reliably tracked political greatness or power; plenty of small states punch well above their geographic weight, and plenty of large ones have struggled to govern what they hold. There is an old warning embedded in the political tradition here: a state’s ambition can become its own undoing. Genuine self-sufficiency rests on a reasonable balance between a state’s territory, its natural resources, and the size of the population it has to support – not on inflated ideas about how much territory a state is entitled to. States that let exaggerated territorial ambitions take hold tend, sooner or later, to find themselves in conflict with their neighbors over exactly that.