21st Army (Soviet Union)
a field army of the Red Army during World War II
The Soviet 21st Army (Russian: 21-я армия) was a field army of the Red Army during World War II.
Operational history
June–September 1941
21st Army was a part of the Second Operational Echelon of the Red Army. It was formed from the forces of the Volga Military District in May 1941 and was initially based on 63rd Rifle Corps (53rd, 148th, and 167th Rifle Divisions) and 66th Rifle Corps. The army was under the command of Lieutenant-General Vasily Gerasimenko, and its chief of staff was Major-General Vasily Gordov. The commander of 63rd Rifle Corps was Lieutenant-General Leonid Petrovsky and the commander of 66th Rifle Corps was Major-General Fyodor Sudakov. In early June the army was moved to the eastern fringes of the Pripyat Marshes south of Homel. At the outbreak of hostilities on 22 June, the army was redeployed north to defend the right bank of the Dnepr between Rybchev and Stary-Bykhov. At the same time 25th Mechanized Corps, under the command of Major-General Semyon Krivoshein, was assigned to 21st Army from the Kharkov Military District.
On 27 June 1941, it was proposed to Joseph Stalin that the Soviet armies (13th Army, 19th Army, 20th Army, 21st, 22nd Army) would defend the line going through the Daugava-Polotsk-Vitebsk-Orsha-Mogilev-Mazyr. On 2 July, 21st Army was subordinated to the command of Western Front. On 4 July, the 3rd Panzer Division crossed the Dnepr and established a bridgehead on the east bank near Rahachow.
Begin with the source’s own compact description: “21st Army (Soviet Union)” is a field army of the Red Army during World War II. The dossier treats that line as a proposition to test through 21st, Army and Soviet, not as a finished interpretation.
Why this record matters
The phrase “a field army of the Red Army during World War II” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Apr 6, 2026. The linked authority identifier is Q1823528. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1941.
Later summaries often reconcile disputed chronology or motive more neatly than the contemporary record permits. 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
Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.
- Event chronology
- Institutional context
- Locating named record creators
Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.
Three-step research path
- Establish the record: confirm the title “21st Army (Soviet Union)”, its source revision and the description used here.
- Expand the search: follow 21st Army (Soviet Union) primary sources, 21st Army (Soviet Union) archive and 21st 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 “21st Army (Soviet Union)”?
- Who created the surviving record, and for what administrative purpose?
- Which voices are present, absent or mediated by the institution?
Search terms from this dossier
This entry incorporates text from “21st Army (Soviet Union)” 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.