This is the list per nation, all major decisions will be available with other nations, and some minor also will available for few other nations.
The icon ♫ indicates that the speech also benefits of a version arranged with music.

Marshal Mannerheim speaks on his 70th anniversary (04/06/1937) and with ♫
Beyond the Winter War (14/03/1940) and with ♫
Njet, Molotoff! (1942)

In front of life (Au devant de la vie) (1932)
The International (L'Internationale)
Campaign against bourgeois fascism (17/04/1936) and with ♫
The victory of the Popular Front! (04/06/1936)
The formation of the Popular Front government (05/06/1936)
Bastille day under the popular front (14/07/1936)
Renewal of the Popular Front oath (14/07/1936)
Non intervention in the spanish civil war (Blum, 06/09/1936)
The Blum experience (Blum, 24/10/1936)
Wishes to the French (31/12/1936) and with ♫
The international situation - war is fast approaching (04/01/1938)
Peace in Europe (Daladier, 01/10/1938)
We shall not submit to the diktats of violence (Daladier, 10/10/1939)
We are going to hang out the washing on the siegfried line (17/10/1939)
Hegemony of the Reich (Paul Reynaud, 26/03/1940) and with ♫
Armistice (17/06/1940)
Maréchal, nous voilà! (1941)
I wish for a german victory (Laval, 22/06/1942)
Le chant des partisans (30/05/1943)
Paris outraged! Paris shattered!... but Paris liberated! (De Gaulle, 25/08/1944) and with ♫
Farewell speeches by General Leclerc (Leclerc, 06/22/1945 and 12/08/1945) and with ♫

Horst wessel lied (1929)
Speech against bolshevism (Goebbels, 10/09/1936)
The increase of german production (Hitler, 30/01/1937)
Anschluss: this land is german (Hitler, 15/03/1938) and with ♫
The misery of the sudeten Germans (Hitler, 12/09/1938)
Answer to Roosevelt (Hitler, 28/04/1939)
Danzig is a german city! (Hitler, 01/09/1939) and with ♫
The greatest struggle in the history (Hitler, 03/10/1941) and with ♫
The destruction of bolshevism (Hitler, 30/09/1942)
Stalingrad speech (Hitler, 08/11/1942)
Do you want total war? (Goebbels, 08/02/1943) and with ♫
The last speech (Hitler, 30/01/1945)

No. Then it's war! (Ioannis Metaxas, 28/10/1940) and with ♫

Horty miklos katonaja vagyok (1936)

Giovinezza (1924)
Faccetta nera (1935)
Armed Peace (Mussolini, 01/11/1936)
Believe, obey, fight! (Mussolini, 26/03/1939)
Italian declaration of war (Mussolini, 10/06/1940) and with ♫

We seek the cooperation of the Chinese (Kunihiko Saito, 1937)
Apologies for the USS Panay incident (Kunihiko Saito, 1937)
No menace against Japan! (Tojo, 17/11/1941) and with ♫
Emperor Hirohito’s surrender (Hirohito, 14/08/1945)

Long live Spain! (Franco, 18/04/1937)
A totalitarian state in Spain (Franco, 03/1939)

Po atarau (17/04/1930)
New Zealand is ready (21/12/1941)

Proclamation to the people of Norway (Vidkun Quisling, 09/04/1940)
Desire for Freedom (King Haakon VII, 16/06/1940)

Anthem of the Chinese Soviet Republic (1931)
Proclamation of the People's Republic of China (Mao Zedong, 01/10/1949)

The last polish radio broadcast (autumn 1939) and with ♫
We do not know peace at all costs (Becka, 05/05/1939)
The polish first armoured division (02/1942)
Fighting for a people’s Poland (1944)

Stand up China (1937)
Madame Chiang Kaï-shek's protest (Soong Mei-ling, 11/11/1937) and with ♫
Cooperate for a better world (Soong Mei-ling, 18/02/1943) and with ♫
Chiang Kaï-shek's victory speech (Chiang Kaï-shek', 15/08/1945)

One more effort, comrades! (José Diaz, 09/1936) and with ♫

Sfanta tinerete legionara (1940)
A people and one country, like the Holy Sun in the sky! (Ion Antonescu, 06/10/1940) and with ♫

God save the King! (1744)
The Death of King George V (British Pathé, 23/01/1936) and with ♫
King Edward VIII’s abdication speech (12/12/1936)
King Edward VIII’s abdication speech - with music (12/12/1936)
The english secret (Baldwin, 27/05/1937) and with ♫
Peace for our time (Chamberlain, 30/09/1938)
Declaration of war (Chamberlain, 03/09/1939) and with ♫
Communism rots the soul of a nation (Churchill, 20/01/1940)
Blood, toil, tears and sweat (Churchill, 13/05/1940) and with ♫
We shall fight on the beaches (Churchill, 04/06/1940) and with ♫
This was their finest hour (Churchill, 18/06/1940) and with ♫
Elizabeth of Windsor's first speech (13/10/1940) and with ♫
Address to joint session of US congress (Churchill, 26/12/1941) and with ♫
The end of the beginning (Churchill, 10/11/1942) and with ♫
We must not forget the burden on Russia (Churchill, 05/19/1943)

Marines Hymn (18XX)
Marines Hymn - acoustic version (18XX)
We have only just begun to fight (Roosevelt, 03/10/1936) and with ♫
Quarantine speech (Roosevelt, 05/10/1937)
Arsenal of democracy (Roosevelt, 29/12/1940) and with ♫
The Four Freedoms (Roosevelt, 06/01/1941) and with ♫
The Day of Infamy speech (Roosevelt, 08/12/1941) and with ♫
Order of the day (Eisenhower, 06/06/1944)
Order of the day - with music (Eisenhower, 06/06/1944)
I have returned (D. MacArthur, 20/10/1944) and with ♫
The surrender of Germany (Truman, 08/05/1945) and with ♫

Democratic elections (Stalin, 11/12/1937)
The Sacred War (26/06/1941)
There are no invincible armies (03/07/1941) and with ♫
The liberation of Kiev (Georgy Zhukov and Nikolai Vatutin 06/11/1943) and with ♫
Anthem of the USSR (15/03/1944)
Stalin's Victory Broadcast to the Soviet People (09/05/1945) and with ♫