| Fechas de Declaración de Guerra |
| País declarante | A Alemania |
A Japón |
A Italia |
Argentina |
27-03-45 |
27-03-45 |
--- |
Australia |
03-09-39 |
08-12-41 |
03-01-42 |
Bélgica |
10-05-40 |
10-12-41 |
03-01-42 |
Bolivia |
07-04-43 |
07-04-43 |
07-04-43 |
Brasil |
23-08-42 |
06-06-45 |
23-08-42 |
Canadá |
10-09-39 |
08-12-41 |
11-06-40 |
Colombia |
27-11-43 |
27-11-43 |
--- |
Costa Rica |
11-12-41 |
08-12-41 |
11-12-41 |
Cuba |
11-12-41 |
09-12-41 |
11-12-41 |
Checoslovaquia |
15-03-39 |
17-12-41 |
17-12-41 |
Chile |
16-02-45 |
13-04-45 |
--- |
China |
09-12-41 |
07-07-37 |
09-12-41 |
Dinamarca |
09-04-40 |
--- |
--- |
Ecuador |
02-02-45 |
02-02-45 |
--- |
Egipto |
26-02-45 |
09-12-41 |
--- |
Estados Unidos |
11-12-41 |
07-12-41 |
11-12-41 |
Finlandia |
03-03-45 |
--- |
--- |
Francia |
03-09-39 |
10-12-41 |
10-06-40 |
Grecia |
06-04-41 |
03-06-45 |
28-10-40 |
Guatemala |
11-12-41 |
10-12-41 |
11-12-41 |
Haití |
11-12-41 |
09-12-41 |
11-12-41 |
Honduras |
12-12-41 |
09-12-41 |
12-12-41 |
Inglaterra |
03-09-39 |
08-12-41 |
10-06-40 |
Irak |
16-01-43 |
16-01-43 |
16-01-43 |
Iran |
09-09-43 |
01-03-45 |
--- |
México |
22-05-42 |
22-05-42 |
22-05-42 |
Nicaragua |
11-12-41 |
08-12-41 |
11-12-41 |
Noruega |
09-04-40 |
03-01-42 |
03-01-42 |
Países bajos |
10-05-40 |
10-12-41 |
03-01-42 |
Panamá |
10-12-41 |
09-12-41 |
10-12-41 |
Paraguay |
08-02-45 |
08-02-45 |
--- |
Perú |
12-02-45 |
12-02-45 |
--- |
Polonia |
01-09-39 |
03-01-42 |
03-01-42 |
República Dominicana |
11-12-41 |
09-12-41 |
--- |
Unión Soviética |
22-06-41 |
08-08-45 |
22-06-41 |
Unión Sudafricana |
06-09-39 |
10-12-41 |
12-06-40 |
Uruguay |
15-02-45 |
15-02-45 |
--- |
Turquía |
01-03-45 |
01-03-45 |
--- |
Venezuela |
10-02-45 |
16-02-45 |
--- |
Yugoslavia |
06-04-41 |
03-01-42 |
06-04-41 |
TOTAL |
40 |
38 |
26 |
| José Carlos Violat |