I wasn't around then, but I think we were providing a significant part of almost everything England needed to survive, a tremendous amount of weaponry and logistical support to the Soviet Union, and some logistical support to the Scandanavian nations which had not fallen to the Nazi war machine.
Additionally, even though we, as a nation, were not officially in combat, we did provide some combat assistance, unofficially, by individual US citizens joining the military forces of several nations already in the conflict. Also I think, we provided a tremendous amount of military "advisors," and intelligence gathering and analysis assistance.
There are probably many other ways we were involved, but these are all I can recall at this moment.
As an alternative outlook
Answer 2
ALSO SEE
Why the USA did not supply "AID" to Britain
prior to Pearl Harbor
The Mood Of The USA 1939 to Pearl Harbor
By - Rooseveltes Roving Ambassador of that time
http://www.YouTube.com/watch?v=BdI7HgrkFCI
As I remember from a documentary
The USA took Britains gold reserve, then extended credit for supplying the UK war effort, some would call this profeteering, though even this was against the popular sentiment in the general population of the USA at the time.
Money is power and the new super power of the USA was on its way to creation, through bankrupting the old, and not getting directly involved until Britain was bankrupt.
All the while the the UK was being reduced to rubble, and other countries were falling to Nazi domination.
Pearl Harbor - changed US opinion though, not a sense of duty to the Jewish people or saving democracy and the free world from the Nazi Blitzkrieg.
The war was started by the Nazis when they invaded Poland on September 1, 1939. The Brits and French declared war on Germany. Then the war escalated when Germany invaded France, Belgium, The Netherlands, and Denmark. The rest is history.
Like most sensible people, they tried to stay out of what was viewed in most of America as an European war. Though America did unofficially aid Britain with supplies and a number of old war ships under the lend lease treaty. When Japan attacked Pearl Harbor, and Nazis Germany (allies of Japan) declared war on America, America came into the war officially on the side of Britain and her Allies.
1939
WW2 went for 6 years from 1939
The World War 2 started in 1939 when Neville Chamberland went to Hitler to try and avoid war
Ultimately it accomplished nothing and was part of the reason Germany went to war in 1939.
they went to war again because France lost the first world war
Nazi Germany went to war in 1939 in the hope of ruling most of Europe, and possibly some of the world beyond Europe.
World War II started in 1939.
1939
World War 2 went on from September 1st,1939 to August 15, 1945. For the US, it was from December 8th,1941 to August 15th,1945
I Went to a Marvellous Party was created in 1939.
The end of World War 1 prepared the way for World War 2, but the actual war started by Germany's invasion of Poland in 1939. Great Britain and France had a pact with Poland, and they declared war on Germany. It went from there.
World War 2 started in 1941 and ended in 1945