During a visit of the French Navy to Kronstadt in Russia, the two nations reached a secret agreement on a joint response to any future war in Europe.

Kronstadt–Toulon naval visits

1891 and 1893 Franco-Russian diplomatic visits

The Kronstadt–Toulon naval visits were reciprocal diplomatic visits carried out by the French and Russian navies in the lead up to the Franco-Russian Alliance (1894–1917). The visits served as cover to exchange letters between the countries' foreign offices making key defensive…