Brazil–Venezuela border

The watershed

Spain and Portugal never agreed a precise line in the Amazon, but Brazilian settlers never occupied land north of the tangle of ridges between the Amazon and Orinoco basins. After Venezuela separated from Nueva Granada in the early 1830s, it signed a treaty with Brazil in 1852 that its congress did not ratify, then another in Caracas in 1859, based on actual occupation, that defines nearly all of today’s line.^[1]

Marking it took until the 20th century. The frontier is rugged, isolated and almost impossible to cross; boundary commission members were among the first Europeans in parts of it, and at the Brazilian demarcation commission in Belém an entire wall is lined with spears thrown at its members during one expedition. More than 1,300 markers had been placed by 1985.^[1]

“An entire wall is lined with the spears hurled at commission members during one campaign incident.”^[1]

Pacaraima

Since 2017 an unprecedented number of Venezuelans have entered northern Brazil; more than 800,000 had come by 2023, seeking medical care, food and work. At Pacaraima, on the border, the International Organization for Migration runs a reception post under Brazil’s Operation Welcome, offering overnight shelter, food and protection, a response the UN has praised as a model for the region.^[2]