Home›Defunct Polish intelligence agencies›Second Department of Polish General Staff🌐EnglishEnglishPolskiРусский日本語EntityQ11795940· pop 5· linked from 120 articlesSecond Department of Polish General StaffPoland's military intelligence arm, 1918–1939Available in 5 languagesРусскийBelarusianPolskiUkrainianvia Wikidata sitelinks · CC0Connections1939 Invasion of PolandEntityCipher BureauEntityCategoriesDefunct Polish intelligence agenciesGovernment agencies disestablished in 1939Government agencies established in 1918History articles needing translation from Polish WikipediaMilitary history of the Second Polish RepublicMilitary intelligence agencies