Kiev offensive (1920)
attempt by Poland, led by Józef Piłsudski, to seize central and eastern Ukraine from Soviet control
The 1920 Kiev offensive (or Kiev expedition, Polish: wyprawa kijowska) was a major part of the Polish–Soviet War. It was an attempt by the armed forces of the recently established Second Polish Republic led by Józef Piłsudski, in alliance with the Ukrainian People's Republic led by Symon Petliura, to seize the territories of modern-day Ukraine which mostly fell under Soviet control after the October Revolution as the Russian Soviet Republic.
Polish and Soviet forces fought in 1919 and the Poles advanced in the disputed borderlands. In early 1920, Piłsudski concentrated on preparations for a military invasion of central Ukraine. It would result, he anticipated, in destruction of the Soviet armies and force Soviet acceptance of unilateral Polish conditions. The Poles signed an alliance, known as the Treaty of Warsaw, with the forces of the Ukrainian People's Republic. The Kiev offensive was the central component of Piłsudski's plan for a new order in Eastern Europe centered around a Polish-led Intermarium federation. The stated goal of the operation was to create a formally independent Ukraine, although its dependence on Poland was inherent to Piłsudski's plans. Ukrainians ended up fighting on both sides of the conflict.
The campaign was conducted from April to July 1920.
“Kiev offensive (1920)” enters the record as attempt by Poland, led by Józef Piłsudski, to seize central and eastern Ukraine from Soviet control. Crown Archives preserves that source wording while asking what Kiev, offensive and attempt can confirm, complicate or overturn.
Why this record matters
“Kiev offensive (1920)” is worth following because a concise public description often conceals a longer documentary argument. Here, Kiev, offensive and attempt provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 24, 2026. The linked authority identifier is Q2600516. Authority coordinates are 50.450, 30.517. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1920 and 1919.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Kiev offensive (1920)”, its source revision and the description used here.
- Expand the search: follow Kiev offensive (1920) primary sources, Kiev offensive (1920) archive and Kiev research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Kiev offensive (1920)”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Kiev offensive (1920)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.