Im suprised the real reason why germany attacked russia is not known
In short, it was a pre-emptive strike
"operation thunder" as it translates from russian tongue, was a planned attack by stalin to begin an aggressive, all out war to conquer germany. this was planned to begin in july, Which was literally two weeks after hitler launched "operation barbarossa" (after hitler found out what stalin was upto)
There is a lengthy document about somewhere on the web that collates all the facts (i used to have it, but seemed to have deleted it by accident!)
Simply put, stalin helped hitler rise to power in germany through various ways (while germany was restricted by the versaille treaty, etc)
His plan was to create a war in europe, have germany conquer it all, and then "liberate" all of europe (including britain) under the soviet flag (thereby extending communism)
During the early war years & pre war years, russia was developing weopons to be used in this "european theatre", things like the BTseries, "fast" tanks that reach high speeds, these tanks had very narrow tracks that were detachable to leave road wheels to be used on roads for even higher speeds (being able to perform fast, deep penetrative maneuvres). these were produced in large qauntities in anticipation of this war, which was to be fought on the good roads of western europe (as there use on the mired mud tracks of russia at the time wasn't of much use if the war was to be fought in russia!(which they didnt plan for(which is why russia got completely decimated at the start of barbarossa: they werent prepared at all for it, but thats another story))
Other things were the massive build-up of russian forces on the german territory borders after poland capitulated ( and right upto barbarossa ),
Something like 300plus divisions, all trained in the art of offense, stalin wouldnt have them trained in defense at all, thinking that defensive training wasnt nesassary (this was all-out offense the war he had in mind), which was another reason the russians lost so much after hitler attacked first.
Another thing of note was that that practicly all of hitlers oil supply was in the ploesti region (which was a mere 100 miles from the russian border, were masses of divisions were waiting to pounce!), if this was captured (as was planned in operation thunder) hitler armies would have been paralysed, allowing russia an even greater advantage (which was one of the main reasons why operation barbarossa occured)
So, with germany & hitler defeated in an all-out offense by stalin, off he would go to "liberate" france, & all the other countries hitler conquered, more than likely go on to invade itlay, BRITAIN! (battle of britain re-written!!)
Perhaps then on to the usa & ultimate domination & success of communism.
Hitler attacking first didnt spoil his plans entirley though (for he did occupy every country from berlin eastwards after the war & "communize it", iron curtain, etc. Plus its one of the main reaosn D-Day/ the normandy landings was done asap (to prevent as many countries as possible falling into russian hands) & restore democracy
Strange how one event can have such a vast outcome in the future of humanity, if "operation thunder" had succeeded, there would be no United nations, all europe would have been occuppied, the US wouldn't have profited from the war & become a superpower, either itself conquered, or at the very least, isolated.
The world would be VERY different today indeed if this had happened
(Even though hitler was Immensly evil, he did save the world from the other "evil" in the east)
Sends a chill down my spine that story does
(and one of the reasons why i always play axis in CMBB, heh!)
Ps, ill see if i can get the document and post it here if i ever find it