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PostItalians Fighting in the Baltic, WWII (Eugenio Battaglia, Italy, 06/12/19 10:03 am)
You may find the story of the Italian forces of the RSI including the groups abroad, in the three volumes of the Forze Armate della RSI by Nino Arena.
There is also the four-volume Gli Ultimi in Grigio Verde by Giorgio Pisanò.
I do not know if there is a book specifically dedicated to the five Battalions Fumogeni in Stettin. Of course there are several magazines of the ex RSI (and their heirs) that have published articles on these forces. Please note that on 9 September 1943 180,000 Italian soldiers did not try to go home but remained in the lines fighting together with their German ally, then became part of the armed forces of the RSI.
These 180,000 men were serving on practically all fronts. They did not want to betray the Axis but at the same time they wanted to remain fighting under the Italian Flag and not the German one.
The most interesting is the Decima Mas of Borghese, which signed a pact of alliance with Germany through Berninghaus, leader of the Kriegsmarine in Italy. On a few occasions there were threats of armed confrontations, when the forces of the RSI felt that the interests of Italy were not respected by the Germans, especially in the Northeast of Italy.
JE comments: This is sort of off-topic, but I observed in my father-in-law's extensive library that Polish historians are fond of the multi-volume work. As Eugenio Battaglia shows above, the same rule applies to the Italians. We have no such tradition in the US or the UK. Do we Anglos have shorter attention spans, or simply less to say?