America was able to start all-out war production fairly quickly, and throughout the war they produced an excess of materials, which were used by all the Allies. Also, the Allies had great military and civilian leaders, such as Franklin Roosevelt, Eisenhower, MacArthur, and Marshall. Lastly, they were resourceful, tough, and adaptable in times of need.
Britain had worlds largest navy, meanwhile Germany had been forced to abstain from large ships according to the Versailles treaty. Japan, USA and UK had aircraft carriers.
Soviet had such a population that they could replace killed soldiers easier than Germany, that let children and elderly fight in the last months of the war.
As a whole the allies mobilised almost 60 million soldiers (20 M Red Army), meanwhile the Axis less than 25 millions
In the last year of the war Germany had lost access to oil fields, which made both aircraft and tanks immobilised, meanwhile the allies had no such shortage.
Britain and USA had heavy bombers that reached the heart of Germany to bombard the military industry constantly, meanwhile the US industry was out of reach and could replace all the lost bombers.
UK had started to use radar technology and could predict German air attacks.
UK cryptographers had found out the codes for the German Enigma system and could successfully eavesdrop the German messages.
The Germans were burdened by the fanatic killing of civilians, with took time, resources and affected the morale of army soldiers.
The military leadership in the last year wasn't based on military expertise, but Hitler personal megalomaniac ideas and unrealistic hope, dismissing many experienced officers that contradicted.
The allies had the resources to make more tanks, as they were smaller, and also less complicated, thus rather reliable. The Russians invented the sloped front.
The Germans had made enemies everywhere because of cruelty and people were retaliating in guerilla attacks
Some key scientists escaped from Europe to work in USA instead, which was decisive for the development of the atomic bomb in the last weeks of the war.
Germany had to fight on double fronts
Britain is on islands, harder to invade with Blitzkrieg
British schemes to fool the Germans with false intelligence details succeeded, getting Axis troop reinforcements to be in the wrong place
Hitler made miscalculations about operation Barbarossa and couldn't supply the needed resources, wasting a large army there.
The governments of the Germany's European allies were weak and faced internal problems
Advantages of the Axis:
Until the P-51 Mustang, the German fighter aircraft were more efficient and decimated the bomber fleet. Spitfire was rather fast but hadn't enough working range.
Germany designed the first jet propelled fighter plane (but lacked the petrol to use it!)
The German tanks were better armed and had much better fire power, and radio
The Germans had an efficient way of military leadership and good discipline
The German U-boats had developed the wolfpack tactics
The Germans had developed ballistic missiles
The Germans used slave labour (as well as women like everybody) in the war industry
German physicists and chemists had made much research on new sciences, useful for weapons, like the atomic bomb
Germany had very skilled engineers
The Axis had occupied a large territory and could fight from defensive positions
German soldiers had much better equipment than the Russians, except winter clothes
The Japanese had a culture where suicide missions were honoured, allowing the devastating kamikaze attacks
Previous answer
The allies had the U.S., Soviet Union, and Canada. 3 very large countries with a big population so they can have more soldiers then axis countries of Japan, Italy, and Germany. They also had the atomic bomb. The U.S. was getting a lot of Jewish immigrants from the Holocaust such as Albert Einstein so they were smarter. And the U.S. was having women work in factories (very new for this time period) so they had more workers to make jets, boats, tanks, and weapons.:
radar, tanks, submachine guns, blowtorch etc
The pure manpower
The US and the Allies won World War 2.
World War 2. The Allies had it, and the Axis did not.
No, the Philippines were allies of USA
Victory for the Allies.
russion
The Allied Forces in World War 2 had more allies than the Axis did.
Britan was one of New Zealand's allies in world war 2.
World War 2 was of two alliances. The Axis, and the Allies. Great Britain and U.S.A were on the Allies side.
The US and the Allies won World War 2.
The Netherlands were Allies in World War II.
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They were are allies
World War 2. The Allies had it, and the Axis did not.
Sweden had no allies before world war 2, exept frequent trading with neighburing countries.
We won
World war 2
Soviet and Chinese manpower, American industrial capacity and the tenacity of the British Empire.