Final answer:
Churchill and Roosevelt planned attacks against Italy, specifically Sicily, during their meeting in Casablanca.
Step-by-step explanation:
During their meeting in Casablanca, Churchill and Roosevelt planned attacks against Italy, specifically Sicily. This decision was made to chase the Axis up the Italian peninsula and weaken their presence in Europe. The invasion of Sicily took place in July 1943 and marked the beginning of the Allies' advance northward through Italy.