What was the purpose of the Atlantic Charter?

 (My answer in Quora)

The Atlantic Charter was a broad Anglo-American vision of how the goals of each of these two great democracies should align in a post WWII world. The statement was issued on the 14th of August 1941 following a meeting in Placentia Bay, Newfoundland between the British PM Winston Churchill and American President Franklin Delano Roosevelt.

Source: The Article

Roughly speaking it cemented the notion that the UK and the US would not seek territorial gains from the war, championed the rights of self-determination for all people, made a commitment to reduce trade barriers, emphasized economic co-operation to advance social welfare concerns and pledged to make significant inroads with respect to disarmament. It also stressed the great freedoms ie. freedom of want from fear and the freedom of the seas.

However the Charter’s most critical item in terms of the war effort context was the pledge by both leaders (Point 6) to eradicate Nazism. It is believed that this point alone made Hitler more desperate (or indeed determined) to ensure victory against the Soviet Union. It was this desperation that would compound present and future errors by the Nazi dictator.

Source: History.com