Question: The USS "Phelps" along with the cruiser "Chester", escorted a vessel that served as the flagship for the commander of what?
Sentence (from "USS Indianapolis (CA-35)"): The vessel served as the flagship for the commander of Scouting Force 1 for eight pre-war years, then as flagship for Admiral Raymond Spruance, in 1943 and 1944, while he commanded the Fifth Fleet in battles across the Central Pacific in World War II.
Relevant evidence: Yes