Who (or what) was roosevelt referring to when he said, the hand that held the dagger has struck it into france's back?

On June 10,1940 US president Franklin D Roosevelt gave his famous speech "Stab in the Back" at University of Virginia.

On the speech He mentioned that the hand that held the dagger has struck into it's neighbor's back. Here he referred Italy and Mussolini as the hand which held dagger and France was the neighbor.

Because on June 10,1940 Italy declared war against France and Britain and joined to Germany on axis power. Mussolini said Italy was joining war against France and Britain as for keeping promise to Germany.

Roosevelt mentioned this incident for in his speech as the hand held dagger has struck into France's back.

Moreover, in this speech, He made a proclamation about removing America's neutral position in war and soon declared the Mediterranean see as a combat zone.

Explanation:

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.