When Citizenship Becomes a Question of National Security: A political essay

Imagine the following scenario

Imagine the following scenario.

Over several decades, very large numbers of Russian citizens migrate to Sweden. At first there are hundreds of thousands. Over time, perhaps considerably more.

They come for different reasons: war, economic opportunity, political instability, family connections, or simply because Sweden offers a safer and more prosperous life.

Most live ordinary lives. They work, raise families and participate in Swedish society. Many integrate completely.

But suppose that a significant minority retains a strong Russian national identity. They consume Russian media, remain closely connected to Russian institutions and organisations, and hold political views considerably more sympathetic to Moscow than those of the Swedish population at large.

Eventually, many become Swedish citizens.

This is where the thought experiment begins.

Citizenship is political power

Sweden has recently made its citizenship rules substantially stricter.

Until June 2026, the normal residence requirement for naturalisation was five years. Since 6 June 2026, the general rule is eight years. Applicants must also meet requirements concerning self-sufficiency, conduct, knowledge of Swedish and knowledge of Swedish society, although exceptions and shorter residence periods exist for certain categories.

That is an important change.

But eight years is still a relatively short period when viewed across generations.

Once naturalised, a citizen of Russian origin is not a lesser citizen. He or she possesses precisely the same right to participate in parliamentary elections as any other Swedish citizen. In elections to Sweden’s national parliament, the Riksdag, Swedish citizenship is the fundamental nationality requirement.

Now suppose that, after several decades, the Russian-origin population has become very large.

A new political force emerges

A new political party emerges.

It operates legally and participates normally in democratic elections. It does not openly advocate dictatorship. Instead, it presents itself as the voice of a neglected minority and argues for a fundamental change in Swedish foreign policy.

It wants sanctions against Russia abolished.

It wants Sweden to distance itself from Western security structures.

It argues that Russia has legitimate security interests that Stockholm has ignored.

It campaigns against Swedish military support for countries confronting Moscow.

Perhaps it also promotes Russian-language schools, media institutions and cultural organisations as essential minority rights.

None of this necessarily has to be illegal.

That is precisely the point.

The party receives 3 percent.

Then 5 percent.

Then 8 percent.

In some municipalities it receives considerably more.

Eventually, established parties discover that governments cannot easily be formed without taking its electorate into account. Political compromises that once seemed impossible become negotiable.

No tanks have crossed Sweden’s borders.

No coup has taken place.

No ballot boxes have been stolen.

Every election may have been perfectly free.

The transformation occurs one election at a time.

When demography becomes geopolitics

Move the scenario forward another generation.

The Russian-origin population now consists largely of Swedish-born citizens. Many speak perfect Swedish. Some no longer speak Russian at all.

Obviously, they do not all think alike.

Ethnic background never produces a uniform political opinion.

But our hypothetical requires only that a sufficiently large proportion retain a political affinity toward Russia for this preference to become electorally significant.

The Russia-friendly party now commands perhaps 15 or 20 percent of the vote.

At that point the debate changes.

Why, its politicians might ask, should Sweden treat Russia as a geopolitical adversary when millions of Swedish citizens have family, cultural and historical connections to Russia?

Why should Swedish soldiers potentially fight Russians?

Why maintain sanctions?

Why should Sweden’s geopolitical orientation remain permanently fixed toward Western Europe and North America?

A proposal that would once have been politically unthinkable gradually enters respectable debate: perhaps Sweden should develop an institutional relationship with Russia.

At first it is described as economic cooperation.

Later, perhaps, as a special security arrangement.

Eventually somebody proposes a deeper political association — not necessarily annexation, but some form of union or confederation.

Belarus might be presented as one possible model of extremely close political and economic integration with Russia.

Such a transformation would face enormous obstacles. Sweden belongs to both the European Union and NATO, while changes to fundamental aspects of Sweden’s constitutional order can require two identical parliamentary decisions separated by a general election.

The argument is therefore not that Sweden could become a Russian satellite state overnight.

The relevant timescale is fifty years.

Perhaps a century.

Would this constitute foreign interference?

An important distinction now becomes necessary.

If Swedish citizens of Russian origin independently vote for a pro-Russian political party, that is not, by itself, foreign interference.

It is democracy.

One may profoundly dislike the outcome while still recognising the legitimacy of the electoral process.

Foreign interference is something different.

It arises if the Russian state begins secretly financing political organisations, controlling media, cultivating political leaders, intimidating diaspora communities, conducting intelligence operations or using economic and informational networks to influence Swedish politics.

The two phenomena can also overlap.

A domestic constituency may exist independently, while a foreign government simultaneously attempts to organise, finance or manipulate parts of it.

That possibility demonstrates why citizenship can have a national-security dimension.

A passport is not merely a travel document.

Citizenship ultimately confers a share in political sovereignty.

The question of who becomes a citizen is therefore also, indirectly, a question about who will determine the future character of the state.

That does not mean immigrants should be presumed disloyal. Nor does it mean citizens should possess different political rights depending on ancestry.

Once citizenship has been granted, equal citizenship is fundamental to liberal democracy.

The more difficult question concerns what level of attachment, integration and permanence a country should require before citizenship is granted in the first place.

Different democracies answer that question differently.

Now change one variable

Now perform a simple intellectual exercise.

Replace the Russians in this scenario with a very large immigrant population originating predominantly from societies in which the historical relationship between religion, law and political authority differs substantially from that of secular Northern Europe.

At this point, the thought experiment suddenly becomes far more controversial.

But intellectual consistency requires that the same analytical framework remain available.

There is, however, an essential distinction.

Muslims and Islamists are not the same category

Muslims and Islamists are not the same category.

“Muslim” describes adherence to a religion encompassing nearly two billion people and enormous political, cultural and theological diversity.

“Islamism” describes political movements that seek, in varying degrees and forms, to organise the state, law or society according to an explicitly Islamic political programme.

Those categories cannot responsibly be collapsed into one another.

Survey research illustrates why. Pew Research Center has repeatedly found substantial support for democracy among Muslims in many countries, while also finding large differences between countries concerning religious law, the political role of clerics and the desired relationship between Islam and government. In Pew’s 2024 survey, for example, majorities in Bangladesh, Indonesia, Malaysia, Tunisia and Turkey said their countries could simultaneously be Muslim and democratic. Attitudes toward the role of Islamic law nevertheless varied substantially.

Earlier Pew research likewise found that Muslim attitudes toward democracy, religious freedom and political Islam differed greatly across regions and countries.

So the serious question is not:

What happens when there are many Muslims?

It is:

What happens if a liberal democracy receives, over a prolonged period, very large populations among whom sufficiently influential political movements reject important elements of liberal constitutionalism — and those movements eventually become electorally powerful?

That is a legitimate question whether the ideology concerned is religious, nationalist, communist, fascist or something entirely new.

The Iranian lesson — and what it actually shows

Iran is frequently invoked in discussions of this kind.

But the history is more complicated than the simplistic proposition that “Muslims voted away democracy.”

The movement that overthrew Shah Mohammad Reza Pahlavi in 1979 was heterogeneous. Islamists participated alongside liberals, nationalists, secular opponents of the monarchy and groups on the political left.

After the revolution, however, Ayatollah Ruhollah Khomeini’s Islamist movement progressively consolidated power and pushed aside many of its former revolutionary partners. The newly created Revolutionary Guard became one of the institutions through which the new order was protected and consolidated.

Iran therefore provides a more sophisticated warning.

Political factions with fundamentally different visions of the future can cooperate while confronting a common opponent.

They need not agree on what comes afterwards.

Once the existing political order has been weakened, the most organised faction may be in a position to marginalise former allies and redesign the institutions themselves.

There is nothing uniquely Islamic about that mechanism.

History contains communist, fascist, nationalist and religious examples of political movements using existing political institutions until they possess sufficient power to transform those institutions.

The relevant issue is therefore not religious identity.

It is commitment to the constitutional rules of the game after political power has been obtained.

Liberal democracy contains a paradox

This exposes an uncomfortable feature of liberal democracy.

A democracy says that citizens have the right to determine their country’s future.

But that principle necessarily means that a sufficiently large electorate can eventually change the country itself.

Demography does not mechanically determine politics. People assimilate. Identities change. Children frequently hold very different political views from their parents. Intermarriage, education, economic development and ordinary social contact all complicate attempts to extrapolate today’s political preferences fifty years into the future.

Nevertheless, political institutions cannot simply assume that every demographic transformation is politically irrelevant.

Citizens determine institutions.

Institutions also shape citizens.

And over long periods, both change together.

The liberal state therefore faces a genuine dilemma.

It must avoid treating people as permanently foreign because of their ancestry or religion.

At the same time, it cannot be indifferent to political movements that explicitly reject pluralism, equality before the law, freedom of conscience, religious liberty, freedom of expression or the constitutional separation between religious authority and state power.

Those are two different principles, and a serious democracy must be capable of defending both simultaneously.

The deeper citizenship question

This brings us back to citizenship.

What exactly is citizenship supposed to mean?

Is it principally an administrative status acquired after residing within a country’s borders for a specified period?

Or does citizenship represent something deeper: acceptance of a constitutional community and its fundamental principles?

Sweden’s 2026 reforms implicitly move somewhat toward the second conception. Residence alone is no longer sufficient under the general naturalisation rules; applicants must also satisfy language, societal-knowledge, self-support and conduct requirements.

How demanding such requirements should be is a legitimate political disagreement.

There are arguments on both sides.

Longer and more demanding naturalisation processes can strengthen the connection between citizenship and integration.

Conversely, making citizenship excessively difficult can leave large permanently resident populations outside the political community despite working, paying taxes, raising families and building their lives in the country.

There is no mathematical formula that resolves this tension.

But pretending that citizenship has no connection whatsoever to national cohesion or national security is equally inadequate.

Return to the Russian thought experiment

Consider again the original scenario.

If several million Russians moved into a small European democracy, retained strong political ties to Moscow, eventually acquired citizenship and created a political movement seeking to redirect the country toward Russia, few national-security analysts would dismiss the development as irrelevant merely because the political activity occurred through elections.

They would examine Russian state financing.

Media networks.

Associational structures.

Foreign intelligence activity.

Political donations.

Religious or cultural organisations.

Patterns of intimidation.

Foreign lobbying.

And the degree to which the movement remained institutionally independent of Moscow.

That analysis would not require assuming that every Russian immigrant was disloyal.

Indeed, such an assumption would make the analysis worse.

The task would be to distinguish ordinary citizens from organised political networks and foreign influence operations.

The same intellectual discipline should apply to Islamist political movements.

The object of scrutiny should not be Muslims as people.

It should be organisations, ideologies, financing, political behaviour and institutional objectives.

Do they accept that a Muslim may freely leave Islam?

Do they accept equal civil rights regardless of religion or sex?

Do they accept criticism and satire of religion?

Do they accept secular legislation even when it conflicts with religious doctrine?

Do they accept that political opponents have exactly the same right to govern when they win elections?

And, crucially, would they continue accepting these principles if they themselves possessed overwhelming political power?

These are legitimate questions for any ideological movement seeking political authority.

The uncomfortable conclusion

The Russian scenario is useful precisely because it removes one of the emotional barriers surrounding this debate.

Almost everyone can understand why the political incorporation of an enormous Russia-oriented population might eventually acquire national-security significance in a country bordering Russia.

Change the population in the thought experiment, however, and people often become reluctant even to ask the same structural questions.

That reluctance is intellectually dangerous.

But the opposite mistake is equally dangerous: treating millions of individuals as though their religion automatically determines their political beliefs.

A liberal democracy should be capable of avoiding both errors.

It should neither ignore organised illiberal movements because their members belong to a minority nor regard an entire minority as an illiberal movement.

The distinction is everything.

The real dividing line is not between native and immigrant.

It is not between Christian and Muslim.

It is not even ultimately between Swedish and foreign.

It is between adherence to a constitutional order based on individual liberty, political pluralism and equal citizenship — and political projects that regard those principles merely as temporary instruments to be discarded once sufficient power has been accumulated.

A democracy that cannot discuss that distinction openly may eventually discover that tolerance alone is not a substitute for institutional self-preservation.