had Hitler cared less about Russia and used its force on Britain....he probably could have taken down Britain. Hitler ****** up when he led his troops into Russia which pretty much made Hitler wide open for an attack.

This is absolutely ridiculous. WWII would not have been won without the might of the American industrial machine. We went from a 175,000 man military to an 8.2 million man military that was capable of fighting all over the world in a year. Britain could not have fought Germany in main land Europe without the support of the Americans. their military was absolutely devastated at Dunkirk and they never really fully recovered after that. If Hitler had just launched an amphibious assault Britain would have got its ass kicked.

The American war effort was vital in both the Eastern and Western front. I'll start with the West because it is chronologically sooner. The Russians lost most of their military industrial factories in the early German assault. These were located to the west because of the abundance of railroads in that part of the country. The Russians were unable to produce their own ammunition and many of the products required for the military because of this loss.

Continued:

America provided Russia with almost all of its supplies to fight the war. We sent Half-tracks, scout cars, almost all of their ammunition used, fuel and steel, as well as many other resources. The famous T-34s were constructed using premium American steel as well as the Russian KS-1s and ISU-152 heavy tanks. Even the Russian heavy machine guns were American made as well as almost all the bullets fired by the Russian troops. It wasn't until near the end of the war when Russia recaptured much of its lost territory was it able to begin to produce its own weapons again. Without America Russia would have been fighting the Germans with sticks and never would have held out at Stalingrad or Leningrad and prevented the capture of Moscow.

Now lets look at the actions in northern Africa which were also key into denying Germany victory in both the Western and Eastern front. Britain had been completely defeated by Rommel in Africa and was in a full retreat.

Continued:

The complete resupply of the British forces and the replacement of the lost armored troops as well as providing our own troops to halt and eventually defeat the German advance across Northern Africa. Rommel would have captured the oil fields in the Middle East which would have been the final nail on the coffin of the Russians in the Eastern front. The Germans had stretched themselves too far in the Eastern front and they began too run dangerously low on oil and gas for their Panzers. I do not think anyone can argue that it was the Americans that denied Germany these vital resources in Africa.

Britain's greatest achievement was during the Battle of Britain when for all intensive purposes the British forces smashed the Luftwaffe. This not only caused the planned German assault on Britain to stall because of the lack of needed air support required of the Amphibious landing, but it also gave the Allies a huge boost during D-Day and on the Eastern Front.

Continued:

Britain also provided a staging area for the assault on Normandy. Without the island it would have been almost impossible to launch an assault from across the Atlantic and crossing the Alps in northern Italy would also have proven extremely difficult.

The Western front was also key to supporting the Russians in the East. Many of the Wehrmacht's most elite troops and Panzer Divisions were stationed on the Western front for R&R before heading back to the Eastern front. The fighting in the West was actually bloodier than in the East. The Americans and Germans both lost more men in the West per regiment fighting than they did in the East. Meaning that if you were in an American or Russian regiment you actually had a greater chance of living through the war in the Russian Regiments.

Continued:

In the end you need to ask your self could the war have been won with out the British? Of course it could have, but could the war have been won without America? No chance in hell. Between the complete supply of the Russian Army and the greatest amphibious assault in history the Americans were vital. Everyone always says how it was really the Russians that won WWII, but they definitely could not have done it without bullets or tanks or basically every other resource needed to fight a war. Not to mention we did all of this while fighting Japan in the Pacific and Southeast Asia which without a doubt was much harder than anything we did in Europe.

America did support rebuilding Europe after WWII (Marshal plan) and America did lead the fight against the USSR during the Cold War

War is good because it gave America more money, essentially.
I somehow question the morality of that assertion.

Well, America saved Europes ass in both world wars actually, as well as the world in WWII when Japan took over half of Asia. As well as most of Europe is fighting in the middle east as well as a america, because Terrorist are suicide bombing all across Europe too.

Lol it's not like America was like, "Lets help those guys, because we want to". They were more like, "Let's help them, because we got attacked by the Germans (WW1 when Germans sunk the Lusitania), and when the Japanese attacked Pearl Harbour. Americans were actually being selfish by not helping out in the first place...