 Complete the following phrase:  Assigned to the Eastern Fleet in the Indian Ocean in early 1942, Formidable covered the invasion of Diego Suarez in Vichy Madagascar in mid-1942 against the possibility of a sortie by the Japanese into the Indian Ocean. Formidable returned home for a brief refit before participating in Operation Torch, the invasion of French North Africa in November. She remained in the Mediterranean and covered the invasions of Sicily and 