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Border Disputes

The Border That Never Ends: Brazil’s Security Test

Published on Mar 09, 2026

Brazil is facing a security challenge shaped by the sheer length of its borders. With nearly 17,000 kilometers of land frontiers—one of the longest continuous stretches in the world—it shares boundaries with ten countries: Argentina, Uruguay, Paraguay, Bolivia, Peru, Colombia, Venezuela, Guyana, Suriname, and French Guiana, an overseas territory of France. No other country in South America manages such an extensive continental boundary.

 

Unlike maritime flashpoints that capture daily headlines, Brazil’s pressures build more quietly across forests, wetlands, and river systems. Although quiet, these pressures are not minor. What happens in these remote zones directly affects urban security, environmental stability, and the credibility of the state.

 

Crime, Not Armies, as the Primary Threat

Brazil’s main border challenge does not come from rival governments but from organized crime. Groups that began inside its prison system have grown into

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