Why Did France Declare War on Germany in 1939 and Then Just Surrender?

Yes, I know quite a bit about the Second World War.  France declared war on September 3, 1939, tried to extend their silly Maginot Line across Belgium to the sea, but otherwise sat on their behinds staring into Germany.  Then, when the Germans came through, the French abandoned Paris and s...

Where can I find the most comprehensive and accurate information on Viking history?

I’m assisting in an historic research and I need a place to find comprehensive documentation ...