Locarno Treaties
Laval had taken the precaution of ensuring that the bilateral treaty agreement was strictly compatible with the multilateral provisions of the League of Nations Covenant and the Locarno Treaties. That in practice meant that military assistance could be rendered by one signatory to the other only after an allegation of unprovoked aggression had been submitted to the League of Nations and only after attaining the approval of the other signatories of the Locarno Pact (the United Kingdom, Italy and Belgium).