At what point was Nazi Germany doomed to defeat?

The Italians wanted Greece to be apart of their Roman Empire, bt British ships had also refueled there, and Mussolini also wanted to show up Hitler.
But had Barbarossa not been postponed, the Germans would not have had to deal with the Russian winter, and might not have lost at Moscow.

And Soviet troops would also be in shit shape, and the Germans wouldn't have to fight in the winter and freeze to death. On another note, I am now wondering if any invasion of Russia has ever been successful, or are they like the UK of the east.

How is that statement ignorant? the Germans steamrolled every other city before Moscow and those troops would be in the same condition as those in Moscow, the only thing that saved the USSR was the winter and Hitler's delays before and during Barbarossa

I guess you could call the German invasion during the First World War successful. Also the Mongolians took great swaths of Russia coming from the east.

Yep, I mean that's where the whole 'stab in the back' thing the Nazis were so keen on came from. If only Brest-Litovsk stood. I mean there were German troops in Russia for a long while after the armistice, which is a bit strange for a defeated power.
Anyway, it would be incredibly naive to think the UK hasn't been invaded since 1066. William of Orange took over (destroyed the Royal Navy in port or something), the Saxe-Coburg (now known as Windsor) family came in from Hannover (I think - still says something about how British they are), the Spanish tried and Napoleon and Hitler didn't.

@The Shaw The biggest reason axis attacked Greece was that they were afraid that British bombers would use Greek air fields and bomb Romanian oil fields.

Actually when Italy declared war,they did for a while bomb them actually , only making Hitler more determined of fastening the pace of Greek invasion .

They lost because Japan was stupid enough to attack America early. They should've waited until the USSR and Britain were destroyed, then by the time America was willing to do something they would've already lost. Actually, if Japan had attacked Eastern Russia during Operation Barbarossa, the invasion would've been a success. Because the Russians knew Japan wasn't going to strike they were able to move all their forces from East to West and save Moscow.

The Japanese attacked America because they assumed (either correctly or incorrectly) that when they attacked the Dutch and the British, that we would assist them, so they decided to pre-emptively strike us, unsuccessfuly. The biggest mistake on the Axis side came with Germany's declaration of war against America shortly thereafter.

The Japanese already invaded Russia successfully before WWI, but i'm not saying they would succeed against the Red Army simply because they still had troops in Siberia during Barbarossa and indeed most of the Japanese force was in China and their Navy preparing for operations against the US.
Also the "mud" season argument is unreasonable because the Germans only stopped at winter after the Siege of Leningrad and Moscow, that's past the "mud" season. And they only got pushed back because of the Soviet reinforcements from Siberia.

We issued an embargoe on the supply of war materiels to Japan, including, most importantly, oil. Because of this, the Japanese needed a new sourceof oil. They found it in the Dutch East Indies, or modern day Indonesia. The Japanese knew that an attack on the Dutch would also mean war with Britain, effectively bringing themselves into WWII on the side of the Axis. They were also aware of America's support of the Allies, and feared that an American entry into the war was immenent, and that American forces would assist the Allies in the Pacific as well. So they included American territories in their December surprise attacks against the Allies.

That's called a brainfart from me. =(

No they didn't stop moving at fall, they stopped only on winter. Unless you're talking about the fall of 42.

Wouldn't you agree then that the six weeks that Hitler had to postpone the invasion of Russia to help the Italians take over the Balkans was critical?

Green part of the map shows the German advances through fall: