I was Listening to a Collection of 1890 -19teens recordings [Taft on Trusts- Bryan on Rite to Organize] and a Geroge M Cohan recording of -- Over There.
I always thought it was -The Yanks are Coming -- But He sings about --The Sammies are Coming --.
It took a couple of plays before I realized He meant Uncle Sam, for the Sammies.
So How do whe get Americans referred to as Sammies today, [instead of Yanks] by people around the world