**No information would help Nazi Germans to win the war - only to avoid it**, like fascist Spain did.

My first argument - *Nazis are Nazi, you can't make them "softer", and they did the best they could*

Long term war was not a German choice. They planned to end the war with Russia at the end of summer of 1941 (and they almost did it!) and to conquer all "living space" they needed to the end of 1942 (Europe up to Urals and Middle East up to Afghanistan or India), and have a peace treaty with countries left in 1942-43.

Germans (and Hitler in particular) were not stupid: they knew more than we do now about battling on two fronts, and that they have not much resources. So they **were not fighting on two fronts for five years** (39-44) - they concentrated all resources (90%) on one main direction (East-West, then East again) with minor operations on other fronts.

Germans were already developing nuclear weapons, rocket and jet engines - before the war. They just had no resources and time to implement all this technology in needed quantities.

So any new information would not change much.

For example: if Hitler would decide not to attack USSR in 41, but instead "finish" Britannia, Germans would loose a lot in sea operations. While USSR would finish there army modernization  and would certainly attack Germans (Stalin also was not stupid - he would knew who would be next) with many thousands of new T-34 and KV-1,2.

Yes the WWII scenario can be changed but Germany or, more precisely, Nazi defeat is inevitable. And the root cause is Nazi ideology. No one would tolerate it. Nazi managed to unite too many countries against them. And if they didn't follow this ideology, they would not be Nazi and would not start that war in the first place.

My second argument - *Any information on military actions would make this information useless*. 

War is a highly random process. And such a process has "butterfly effect": small changes in start conditions make the process to go completely different way (while keeping general "average" direction). So any detailed information about military operations would lead to complete change of military situation in battles. And thus any further information becomes completely inadequate. Batlles would happen in new places with different numbers and positions of troops. And thus "suprises" (bad and good) would be completely new.

So **"...the best choice is not to play..."** - information from future shuold focus on non-military aspects (like "dirty underware" of politics like Churchill), wich would allow Germany to develop in more peaceful way, keeping military actions to local conflicts (sorry, Poland!). But this would lead to unexpected problems with Commis and Japs.