A 1935 mutual assistance pact between France and the Soviet Union aimed at containing Nazi Germany's military expansion in Central Europe.
Key Facts
- Treaty signed
- 2 May 1935
- Type
- Bilateral mutual assistance treaty
- Soviet negotiator
- Maxim Litvinov, Soviet Foreign Minister
- Original French negotiator
- Louis Barthou, assassinated October 1934
- Completing French minister
- Pierre Laval, reluctant successor to Barthou
- Catalyst for completion
- German rearmament declaration, March 1935
By the Numbers
Location
Cause → Event → Consequence
Rising German militarism under the Nazi regime alarmed both France and the Soviet Union. Soviet Foreign Minister Maxim Litvinov and French Foreign Minister Louis Barthou initiated negotiations to create a collective security arrangement. Barthou's assassination in October 1934 interrupted the process, and his successor Pierre Laval was skeptical, but Germany's formal rearmament declaration in March 1935 compelled the French government to push forward.
On 2 May 1935, France and the Soviet Union signed a bilateral Treaty of Mutual Assistance. The agreement was designed to encircle Nazi Germany diplomatically and militarily, committing both powers to support each other against unprovoked aggression in Europe. It was concluded under pressure from the French government, overriding Foreign Minister Laval's reservations about aligning with Moscow.
The treaty signaled a significant but fragile realignment in European diplomacy, pairing a Western democracy with the Soviet Union against the Nazi threat. However, Laval's lack of enthusiasm meant it was never reinforced with military conventions, limiting its practical deterrent value. It nonetheless contributed to Hitler's justification for remilitarizing the Rhineland in 1936, citing the pact as a provocation.
Political Outcome
Treaty signed, establishing mutual assistance between France and the Soviet Union against unprovoked European aggression, though without accompanying military implementation agreements.
France and the Soviet Union had no formal alliance; Nazi Germany faced no coordinated Franco-Soviet deterrent.
France and the Soviet Union were formally bound by mutual assistance, creating a diplomatic counterweight to Nazi Germany in Central Europe.