Which two countries share a land border that is only 155 meters long?

Botswana and Zambia share a land border that is only about 155 meters long. It lies at Kazungula, where the Chobe and Zambezi rivers meet in a region where Botswana, Zambia, Zimbabwe, and Namibia come remarkably close together.

The border is sometimes described as roughly 150 meters, so measurements may vary slightly depending on the survey or rounding used. For quiz purposes, however, Botswana and Zambia is the canonical answer. The area was once discussed as a possible quadripoint, but modern boundary interpretations generally describe two tripoints connected by this short Botswana–Zambia boundary.

Kazungula is also an important transport hub. The Kazungula Bridge, opened to traffic in May 2021, links Zambia and Botswana across the Zambezi River. Its curved design helps avoid nearby Zimbabwean and Namibian territory, illustrating just how tightly packed the four countries are at this location.

A common mix-up is to answer Zimbabwe or Namibia because both countries lie immediately beside the short border. They are near the meeting area, but Botswana and Zambia are the two countries that share the tiny direct boundary.