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Foch Line

Border demarcation between Poland and Lithuania after World War I

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Source updated January 25, 2025
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The Foch Line was a temporary demarcation line between Poland and Lithuania proposed by the Entente in the aftermath of World War I. The line was proposed by Marshal of France Ferdinand Foch, which was discussed only with Polish side, was accepted by the Conference of Ambassadors in 1919. After the Polish-Lithuanian War, with small adjustments the line formed the basis of the inter-war Polish-Lithuanian border. The line left Vilnius on the Polish side. After World War II only its westernmost part, close to the town of Suwałki, follows the line.

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This article is adapted from the Wikipedia article “Foch Line”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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