Europa in der Zwischenkriegszeit (Grenzen ab 1930)

Source: Putzger Historischer Weltatlas, Cornelsen Verlag, Berlin 1997

Translation:

* yellow: Independent Republic of Poland, 11 Nov 1918
* lighter shade of yellow: territorial acquisitions up to 1923
* black line: Curzon Line of 8 Dec 1919
* blue line: German-Soviet line of interest, 28 Sep 1939-1941
* brown: Romania 1914
* lighter shade of brown: territorial acquisitions 1918/20
* grey: Serbia 1914
* grey and lighter shade of grey: Kingdom of the Serbs, croats and Slovenes 1918/20 (Yugoslavia from 1929)
* green: Greece 1914
* lighter shade of green: territorial acquisitions 1919/20
* olive: Turkey after the Treaty of Sèvres, 10 Aug 1920
* lighter shade of olive: Turkey after the Treaty of Lausanne, 24 Jul 1923

Spanish Civil War, July 1936-March 1939

* territory of the Nationalists, July 1936
* conquests up to Dec 1938
* black arrow: support for the Nationalists
* red arrow: support for the Republicans

Partition of Czechoslovakia 1938/39

* 1: Sudentenland (German from 1 Oct 1938)
* 2: Olsa area (Polish from 2 Oct 1938)
* 3: Upper Hungary (Hungarian from 2 Nov 1938)
* Protectorate of Bohemia and Moravia (from 16 Mar 1939)
* Slovakia (autonomous from 6 Oct 1938, independent from 14 Mar 1939)
* Carpatho-Ukraine (autonomous from 8 Oct 1938, Hungarian from 23 Mar 1939)
* red outline: border of the „Greater German Reich“, 31 Aug 1939