Britain, France, and the Soviet Union Each Failed to Build the Alliance That Could Have Stopped Hitler
Note
Inquiry question: Why did Britain, France, and the Soviet Union fail to build an effective collective response to German aggression before 1939?
Britain: Imperial Caution and Rearmament
Avoiding a second world war. British policy was dominated by the calculation that another world war would be catastrophic for the Empire and that the public would not support one. Prime Ministers Baldwin (1935-1937) and Chamberlain (1937-1940) both believed rearmament combined with negotiation could prevent war. The Chiefs of Staff consistently warned Britain was not militarily ready. Some Conservative politicians were also sympathetic to anti-communism and saw a strong Germany as a bulwark against Soviet expansion.
A three-front problem: military planners warned Britain could not fight Germany, Italy, and Japan simultaneously, so the Treasury restricted rearmament to protect economic stability, and the funds available went disproportionately to the Royal Air Force and air defence rather than a large continental army.
France: The Maginot Mentality
Strategic paralysis behind fortifications. France was militarily powerful but strategically paralysed. Its huge investment in the Maginot Line reflected a defensive culture shaped by the First World War's catastrophic losses. Military doctrine planned to wait behind fortifications rather than take offensive action. France had the right to act when the Rhineland was remilitarised in 1936 but refused without British backing, and had a mutual defence treaty with Czechoslovakia in 1938 that it did not honour. The French military establishment consistently underestimated its own strength and overstated Germany's.
A divided home front: frequent changes of government and domestic conflict between the Popular Front left and its conservative opponents over fascism and communism weakened continuity in French foreign policy at exactly the moment it needed resolve.
The Soviet Union: Collective Security, Then Exclusion
Litvinov's collective security effort. Stalin made genuine efforts between 1934 and 1939 to build collective security against Germany. Foreign Minister Maxim Litvinov negotiated mutual assistance treaties with France (1935) and Czechoslovakia (1935), and the USSR joined the League of Nations in 1934. The Western powers remained deeply suspicious of Soviet intentions, and France's military was unwilling to let Soviet troops cross Romania or Poland to reach Czechoslovakia.
Why the West stayed suspicious: the 1935 treaties lacked detailed military arrangements, and the Great Purge's destruction of the Red Army's senior officer corps in the late 1930s badly damaged foreign confidence in Soviet military effectiveness, even as the USSR supplied the Spanish Republic during the Spanish Civil War.
Exclusion from Munich, September 1938. Stalin was not invited to Munich despite the Franco-Soviet and Soviet-Czechoslovak treaties. The message was clear: the Western powers were willing to let Germany expand eastward, and Stalin concluded they could not be trusted as allies.
The 1939 Triple Alliance Talks and Their Failure
Slow, cautious diplomacy. Britain and France opened political talks with the Soviet Union in spring and summer 1939, but the three powers disagreed over which states would receive guarantees and how "indirect aggression" should even be defined.
Poland's veto: Soviet negotiators demanded the right to move forces through Poland and Romania if Germany attacked, but Poland refused entry, fearing Soviet occupation almost as much as German invasion.
A mission that signalled indifference: Britain sent only a lower-level military mission to Moscow, travelling by slow ship in August 1939, with limited authority to commit Britain to anything. The delegation's low rank reinforced Stalin's doubts about how seriously Britain took the alliance.
Why it collapsed: military talks never settled force levels, routes, command arrangements, or a timetable, while Germany offered the Soviet Union rapid territorial gains without any of that diplomatic friction. The failure of the Western talks made a temporary deal with Hitler far more attractive to Stalin.
Interactive question
What single practical detail most damaged British credibility during the 1939 talks with the Soviet Union?
Markscheme
Correct answer: the British delegation was low-ranking, travelled slowly by sea, and lacked real authority to commit Britain to firm terms. This reinforced Stalin's doubts about how seriously Britain took the proposed alliance, at exactly the moment Germany was offering a fast, unconditional deal. [1 mark]
From Exclusion to the Nazi-Soviet Pact
France's underweighted responsibility. Students often focus on Britain and the Nazi-Soviet Pact while underanalysing France. France had treaty obligations to Czechoslovakia it did not honour. Had it acted in 1936 over the Rhineland or in 1938 over the Czech crisis, the history might have been very different.
The Nazi-Soviet Pact, 23 August 1939. Excluded from Munich and unable to secure a credible Western alliance, Stalin chose to buy time and territory by dividing Poland with Hitler. The pact gave Germany a free hand to invade Poland on 1 September 1939 without risking a two-front war. Britain and France declared war two days later.
The deal itself: foreign ministers Joachim von Ribbentrop and Vyacheslav Molotov signed the nonaggression pact, whose secret protocol divided Finland, Estonia, Latvia, Poland, and Bessarabia into German and Soviet spheres of interest.
Historiography
Zara Steiner: argues British and French policy reflected genuine strategic weakness and the trauma of First World War losses rather than simple cowardice, though she is critical of missed opportunities to deter Hitler earlier.
Geoffrey Roberts: contends Stalin's pursuit of collective security through 1938 was sincere, and that the Nazi-Soviet Pact was a defensive response to Western unwillingness to guarantee Soviet security, not evidence of prior Soviet bad faith.
Gabriel Gorodetsky: agrees Stalin preferred collective security for longer than accounts centred on Soviet expansion often admit, reading the 1939 Pact as a last resort rather than a long-planned goal.
Jonathan Haslam: is more critical of Soviet diplomacy, arguing Stalin's suspicion of the West and willingness to deal with Hitler reflected calculated opportunism as much as legitimate grievance.
Judgement: Britain and France's caution was rooted in real strategic constraints, but their treatment of the USSR, especially exclusion from Munich and the half-hearted 1939 talks, converted a potential ally into a power willing to deal with Hitler. Responsibility is shared, not confined to one state.
Exam technique
Paper 3: 15 marks, To what extent: "To what extent were the foreign policies of Britain, France, and the Soviet Union responsible for the failure to prevent war in 1939?"
Build the argument: use Britain's rearmament and public opinion calculation, France's Maginot mentality and unhonoured Czechoslovak treaty, Litvinov's collective security efforts (1934-35), Stalin's exclusion from Munich (1938), and the failed 1939 triple alliance talks as the turning point toward the Nazi-Soviet Pact.
Evaluate perspectives: weigh Steiner's emphasis on genuine Western strategic weakness against Roberts's and Gorodetsky's defence of Soviet sincerity, and Haslam's more critical reading of Stalin's opportunism.
Active recall
Why did British policymakers believe rearmament plus negotiation could prevent war?
What was the "Maginot mentality" and how did it shape French strategy?
What collective security efforts did the USSR make between 1934 and 1938?
What signal did Stalin's exclusion from Munich send, and what did it lead to?