American escorts I would expect to go after anyone that attacked a convoy even before Dec '41... IIRC by the time they started escorting convoys anywhere beyond US coastal waters FDR had already made a point of saying the US would do everything possible to ensure safe passage across the Atlantic and the US Navy was expected to back that up as needed.
I just didn't know if any other nominally neutral nations actually had their own military vessels escorting convoys due to the possibility of attacks being made on their own ships by mistake (or, you know, maybe you left port as a neutral but became somebody's enemy three days out to sea).
I always assumed that any protection would be British and/or American depending on date and location, but I wasn't sure.
|