What services did the red cross provide during world war 2?

Answer 1

 There is a lot to this answer, but here's a short version, also bear in mind, they are a neutral party, they helped all groups which had signed the Geneva Conventions:

POW Support... including everything from pushing for improved conditions, reporting poor conditions, prisoner exchanges, even transporting mail.

Reporting of violations of the Geneva Convention 

Medical Assistance

Moral Support (Example; Trucks with doughnut and coffee for soldiers)

And many other things.  Also interesting to note is that the USSR and Japan were not bound by the Geneva Conventions, and this in many ways resulted in a great number of war crimes in Japanese POW camps, as well as terrible treatment of USSR POW's in German camps.  In both cases, the Red Cross could not help.

This is truly a deep and interesting subject with a large number of hero stories and ties to the modern Red Cross, hit up Google for more detailed information.

Answer 2

Junior Red Cross activities during World War II ranged from the production of clothing, toys, furniture, and art works to entertainment and recreational programs at military camps and hospitals in the U.S. Junior Red Cross members also participated in domestic conservation campaigns (saving and collecting waste papers, textile, metals, fats, and foods) and worked in Victory Gardens again. As before, they assisted individual chapters in a variety of ways: as staff aides, in kitchens and hospitals, with child care, in disaster services, with a bicycle corps as an adjunct to the Red Cross Motor Corps, on war fund campaigns, and for the first time in the recruitment of blood donors.