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First Soviet-British-American supply protocol is signed in Moscow

On 1 October 1941 in Moscow, a secret supply protocol among the USSR, the United Kingdom and the United States set quantities of tanks, aircraft, trucks and food. In the causal graph this event sets in motion the driver Durability of Allied Military Assistance.

Sources: [1][2]

Read the full account

On 1 October 1941 in Moscow, a secret supply protocol among the USSR, the United Kingdom and the United States set quantities of tanks, aircraft, trucks and food. Stalin received the Harriman-Beaverbrook mission. Deliveries then ran Arctic, Persian and Pacific routes.

Context

This is a coalition logistics Fact. Soviet production remained the majority of Red Army equipment. Tonnage debates are later historiography, not a reason to drop the protocol.

Shared responsibility with the Politburo, Sovnarkom, NKVD, front commands, and later the State Defence Committee is part of the record. Sharing is not a reason to drop Stalin’s signature or chairmanship, and it is not a reason to treat every local killing as a personal handwriting sample.

Why it matters

Direct Soviet acceptance.

A decree does not harvest grain, a pact does not fire a rifle, and a conference protocol does not occupy a city by itself. Implementation, if dated, is a later Fact. Mixed welfare effects are separate paths.

Who was responsible

Contribution type and responsibility level for each recorded actor — not sole-author shorthand.

  • Joseph Stalin

    Person

    Direct responsibility

    responsibility level 0.4 · verified

    Stalin’s government accepted Allied supply. Harriman, Beaverbrook and Mikoyan negotiated. He did not produce Studebaker trucks in Detroit.

What changed

Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.

    1. FactFirst Soviet-British-American supply protocol is signed in Moscow
    2. sets in motionDriverDurability of Allied Military Assistance

    impact weight 0.5 · Effect from 1 October 1941 · verified

    Formalizing Lend-Lease and British supply to the USSR increased allied military assistance with a lag of months into 1942–45 deliveries.

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Britannica — Lend-LeaseEncyclopaedia Britannica · High credibility · verified
  2. 2.FRUS 1941 Volume I — Moscow supply conferenceUnited States Department of State, Office of the Historian · High credibility · verified
What the sources establish

FRUS publishes the conference record. Britannica records Lend-Lease. Weeks and Harrison independently reconstruct delivery volumes as ranges.

Where later commissions publish death or deportee estimates, those estimates are attributed to the commission, not invented as a Factrail original count.

Established: the 1 October 1941 Moscow protocol opened large-scale Allied supply. Not established: that Lend-Lease ‘won the war alone’, or that it was negligible.

The documentary limit is the same for every Stalin instrument in this dossier. Central files can show that an order was issued; they cannot, by themselves, reconstruct every raion’s implementation. Memoir and literary evidence (Solzhenitsyn, Shalamov, Grossman) is used here only as independent texture, never as the sole causal source. Soviet published statistics of the 1930s are treated as official claims with known incentives to over-report industrial output and under-report famine. Post-1956 party revelations, the 1991–92 archival openings, the 2010 Russian State Duma statement on Katyn, Ukrainian Holodomor statutes, and USHMM/Wilson Center document publications are later independent or successor-state records. They do not cancel the original instrument. Readers who want the welfare path should open the named driver, then the indicator that driver already reaches, rather than treating the portrait as the mechanism.

Post-1956 party revelations, the 1991–92 archival openings, the 2010 Russian State Duma statement on Katyn, Ukrainian Holodomor statutes, and USHMM/Wilson Center document publications are later independent or successor-state records.

Causal path

How this event connects to drivers and indicators in the graph.

  1. ActorJoseph Stalin
  2. contributed toFactFirst Soviet-British-American supply protocol is signed in Moscow
  3. sets in motionDriverDurability of Allied Military Assistance

Cite this page

Factrail. (2026). First Soviet-British-American supply protocol is signed in Moscow. Factrail. https://factrail.ai/facts/su-lend-lease-protocol-1941

https://factrail.ai/facts/su-lend-lease-protocol-1941

Accessed 15 October 2026.

By the Factrail desk · Method: how we source and score · Last reviewed

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