Historical eventJune 141940

Soviet ultimatum to Lithuania

The Soviet Union issued an ultimatum to Lithuania demanding that the Red Army be allowed to enter the country and form a pro-Soviet government.

Everything on June 14Original source

In context

When
Friday, June 14 194086 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
20th century · 1940s
Recorded from
Wikipedia “On this day” feed

At a glance

Dates: From 1940.

What happened

The Soviet Union issued an ultimatum to Lithuania before midnight of 14 June 1940. The Soviets, using a formal pretext, demanded that an unspecified number of Soviet soldiers be allowed to enter the Lithuanian territory and that a new pro-Soviet government be formed. The ultimatum and subsequent incorporation of Lithuania into the Soviet Union stemmed from the division of Eastern Europe into the German and Soviet spheres of influence agreed in the Molotov–Ribbentrop Pact of August 1939. Lithuania,

June 14 through the years

Other entries on the same calendar day, in order.

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  8. 20142014 Ukrainian Air Force Ilyushin Il-76 shootdown
  9. 2017Steve Scalise
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Everything we record for 1940 →

Sources

Cite this page

“Soviet ultimatum to Lithuania”, What's On This Date, https://whatsonthisdate.com/app/event/soviet-ultimatum-to-lithuania-1940-june-14, accessed October 26, 2026.

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Questions about this entry

When did Soviet ultimatum to Lithuania happen?

June 14 1940 — 86 years ago, on a Friday.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

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