War was declard hundreds of time throughout history. Listing the time and date of every instance would be nearly impossible, given that records of declarations were not often kept for much of history, not to mention findig the records for those that were and putting them in one place.
You are advised to ask the question again, this time specifying the war you wish to know about.
France and Britain declared war on Germany.
Mussolini
the Mongolian War Mongrels of the North
Britain.
france and britain declared war on Germany
France and Britain declared war on Germany.
Britain and France declared war on Germany on 3 September 1939
France declared war, after they had been invaded and taken over.
France along with Spain declared war on Great Britain after Saratoga.
Poland
Mussolini
In May 1756, Britain declared war on France in Europe.
Great Britain and France declared war on Germany in 1939, because germany had invaded land that Great britain had to protect for france.
September 1st 1939 Germany declared war on Poland. To honour the treaty between Poland, France and UK, France and UK declared war on Germany.
Italy.
Great Britain and France declared war on Germany in 1939, because germany had invaded land that Great britain had to protect for france.
Great Britain and France declared war on Germany in 1939, because germany had invaded land that Great britain had to protect for france.