What do you mean by WMDs? If you mean the modern definition: (IE: Nuclear, Biological, Chemical), then yes, of course. As a matter of fact, they had chemical weapons right up until they were forced to sign a armistice.
Knowledge transfer thingy is tricky, as far as American-British relationships in nuclear research is concerned. There was certain Tube Alloy project, which played absolutely crucial role as prelude to Manhattan. And authencity of Soviet nuke is debatable. There were Rosenbergs and Claus Fuchs, after all.Not even the United Kingodm had any ways of making nuclear weapons in the 40's simply because they didn't have the technology or even knowledge like the SU and USA did.
what is "mass" in WMD? i would say any bomb destroys a certain mass.... any bombi s designed to destroy a certain mass... Nuclear, or simply gunpowder based.
France being able to build Nuclear WMD's, no. Not even the United Kingodm had any ways of making nuclear weapons in the 40's simply because they didn't have the technology or even knowledge like the SU and USA did.
If Germany didn't invade they didn't need to either, as there would be no WWII. Most they could have developed would be rockets with an explosive device and really big bombs.