What basic wartime strategy was decided at the december 22?

The political leaders drafted and signed the declaration of the united nations. they decided that the defeat of the axis in europe was necessary, and the military chiefs discussed an invasion of north africa, completed arrangements for american forces to relieve british troops in iceland and northern ireland, made plans for american reinforcement in the south pacific and set  up a combined allied command for south east asia.

Http://www.pbs.org/wgbh/americanexperience/features/reagan-iran/