What Afghanistan Can Learn From Politic of Common Tongue

 

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Language as a Unifying Force: A Case for National Cohesion

Language is far more than a medium of communication—it can serve as a powerful catalyst for uniting a nation. In Alphonse Daudet's short story "The Last Lesson," set in a remote French village, a teacher informs his students that this will be their final day of learning in their mother tongue. Beginning tomorrow, they will be required to speak German. As he speaks, his voice catches and his eyes well with tears—a small, human moment that captures the profound emotional weight of losing one's linguistic heritage and the erosion of identity that accompanies such loss.

Recently, a Taliban official asserted that Pashto should be the sole official language of Afghanistan, claiming that most Afghans speak it. The remark sparked bitter debate among Afghans at home and abroad, with many condemning it as racist and an imposition upon non-Pashtuns. This controversy emerges at a time when Afghanistan is already deeply divided along ethnic lines, threatening to widen the gap between communities in a country that can ill afford further fragmentation.

For nearly two centuries, Afghanistan's rulers—predominantly from the Pashtun ethnic group—have adopted Dari (Farsi) as the official language of the state, a choice that was largely accepted. The Afghan constitution has recognized both Dari and Pashto as official languages, a calculated decision made for obvious reasons: a single language has the potential to unify a multi-ethnic society such as Afghanistan.

Tanzania offers perhaps the most compelling evidence for language as a unifying national force, particularly for nations like Afghanistan. The country possesses an extraordinarily diverse population, with more than 100 indigenous languages and approximately 129 ethnic groups. Yet following independence, the government deliberately promoted Swahili as a national language rather than allowing the language of any single ethnic group to dominate.

Today, Swahili is estimated to be spoken as a first or second language by roughly 90 to 95 percent of Tanzanians. It functions in government administration, primary education, and everyday communication. Tanzania did not eliminate linguistic diversity; instead, it created a common linguistic layer above it. Citizens retained their ethnic languages while using Swahili to communicate across ethnic boundaries. Academic research has described Swahili as playing a major facilitating role in the development of Tanzanian national identity—though researchers caution against attributing Tanzania's stability to language alone. Economic conditions, political institutions, and deliberate nation-building policies also played significant roles. Acknowledging this complexity actually strengthens the argument for a multi-faceted approach to national unity.

Consider what a common language actually accomplishes. It enables citizens from different ethnic and regional backgrounds to attend the same schools, communicate with government officials, read the same newspapers, debate national politics, serve together in the military, conduct business across regions, and marry and socialize across ethnic boundaries. The OECD's research on immigrant integration provides contemporary evidence for this mechanism, finding that proficiency in a host country's language is associated with greater participation in social life, access to public services, employment, and a sense of belonging. In essence, language reduces the social barriers between citizens, fostering a more cohesive society.

Political economists have also developed measures of linguistic fractionalization to assess how divided a country's population is among different language groups. Research published in the Journal of the European Economic Association found that linguistic diversity is associated with lower redistribution when the distance between languages is taken into account: a one-standard-deviation increase in linguistic diversity corresponded to roughly a one-percentage-point reduction in redistribution, relative to an average of 9.5 percent of GDP in the sample. This matters because redistribution requires citizens to accept that people outside their immediate group belong to the same political community.

A related global study found that language segregation was strongly correlated with civil war, social disorder, and protest—more predictive, in fact, than simply counting how many ethnic or linguistic groups a country contains. The problem, in other words, is not that a country contains many languages, but that language communities become socially and geographically separated from one another. This distinction matters greatly for Afghanistan.

France offers a further instructive example. Historically, France was not linguistically homogeneous; regional languages like Occitan, Breton, Basque, and Alsatian were widely spoken. Over time, the French state expanded standardized French through education, administration, and military service. The modern French nation did not simply discover a common language—the state helped create one. National languages, in other words, are often political institutions, not merely natural reflections of ethnic identity.

The Taliban would be wise to focus on more pressing priorities than imposing Pashto as Afghanistan's sole official language. Afghans need freedom of speech, employment opportunities, and, most importantly, the right to choose their government—and the language they wish to speak. Afghans will not abandon their mother tongues. But excluding one language or imposing another would echo the choked voice and welling tears of Daudet's teacher: a testament to the loss of identity that linguistic coercion brings. In a nation already fractured by ethnic divisions, language policy must be handled with care, recognizing that true unity emerges not from imposition, but from choice, respect, and a shared public space where all voices can be heard.