ロカルノ条約
The Locarno Treaties were seven agreements negotiated at Locarno, Switzerland, during 5 to 16 October 1925 and formally signed in London on 1 December, in which the First World War Western European Allied powers and the new states of Central and Eastern Europe sought to secure the post-war territorial settlement, in return for normalising relations with the defeated German Reich (the Weimar Republic). It also stated that Germany would never go to war with the other countries. Locarno divided borders in Europe into two categories: western, which were guaranteed by the Locarno treaties, and eastern borders of Germany with Poland, which were open for revision.