ORIGINAL: warspite1
If Curtis Lemay wants anyone to believe that Mussolini could be TOLD by Hitler that his troops could not attack Egypt, that they must cower in Tripoli* while Germany invades Spain (in Italy's sphere of influence - and I've already shown what that would mean for Mussolini) and that Italy can't make any plans for action against Yugoslavia or Greece, then he needs to provide some evidence to support that view.
OK, I'll bite here (source at the end).
Mussolini
had a good plan for conquering Greece. It was called the "Guzzoni Plan" from the general who devised it. The plan called for "18 reinforced divisions already in Albania, organized in three corps; an improved infrastructure network so to ensure rapid supply and replacements; and for the campaign to start with the good season (around May). And, oh, having Bulgaria as an ally would have been great."
Hitler didn't want for Mussolini to attack Greece. He A) Was worried by any kind of disturbance in the Balkans and B) Feared that the unavoidable British intervention in Greece would have granted to the British the use of airfields from where they could stage bombings of his precious oilfields in Ploiesti.
Hitler, quite openly, wanted for Mussolini to concentrate all his efforts in North Africa and forget everything else.
Mussolini never had a clear plan in mind. He wanted Greece so to show that he was able to conquer "B level countries". But, no, the sight now was on Yugoslavia! (Greece, however, was still verbally attacked in fascist-controlled media) Meanwhile he ordered over and over to Graziani to start his offensive in Egypt (Graziani knew that it was a losing affair and delayed while always asking for more men).
The result was that Greece mobilised (you know, just in case...) while Italy was
demobilising, because, after an unfruitful Summer (warwise), now Italy needed men for the harvest season...
The letters from Mussolini to Hitler were, literally, childish. Every then and now he mentioned, among a score of other topics, the possibility of a war with Greece - almost in fine print. Mussolini knew that openly speaking about starting a war in the Balkans would have sent Hitler against the roof.
Then, fatefully, Hitler occupied Romania. Mussolini (who, once more, had not be informed beforehand) conied one of his most famous sentences: "We will invade Greece
now! And this time it will be Hitler who will learn what happens from the newspapers!" (the other one is the classic "We will break Greece's back!" - this one is still used today in a satirical way...)
So, Italy attacked Greece with 9 not reinforced divisions, against a prepared enemy, with no work done to improve the Albanian infrastructures, while demobilising and in late October. What could have gone wrong?
For all of this and MUCH MORE I always suggest
"Hollow Legions" by Mario Cervi. It is the rare Italian history book also (available in English (it won a lot of national and international prizes) and, while it is about the Italo-Greek war, it is quite insightful about Mussolini, his generals and the tormented relationship with Hitler. Also, the Appendixes are full of original documents, so you are not asked to "believe" the author: the main characters of the great Italian tragedy speak directly to you.
"Yes darling, I served in the Navy for eight years. I was a cook..."
"Oh dad... so you were a God-damned cook?"
(My 10 years old daughter after watching "The Hunt for Red October")