Key event

The first republics — and their wars

May 1918 – 1920

What happened

As Russian power collapses, Georgia (26 May) and then Armenia and Azerbaijan (28 May) declare independence. The three republics immediately dispute the mixed districts between them — Karabakh, Zangezur, Nakhchivan, Lori — fighting local wars complicated by Ottoman and British intervention.

The 1918–20 disputes are the direct ancestors of every later Armenia–Azerbaijan war: the same territories, the same demographic arguments, the same search for outside patrons. Independence lasted less than three years, but the questions it raised lasted a century.

Confidence: High

WhenMay 1918 – 1920
KindPolitical · Territorial change · Military
ArenaArmenia–Azerbaijan / Karabakh legacy

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Where this fits

This is one entry in the Caucasus timeline. The full Key Events surface carries every dated turning point with its filters and its essential subset, and this event in place shows what came before and after it. How Vigil grades, dates and sources its claims is set out in the methodology.