Complex sentence: The "Fist of the Fleet" was originally commissioned Torpedo Squadron 17 (VT-17) in 1943, and fought during World War II with TBF Avenger and SB2C Helldiver attack bombers.
Split into simpler sentences: The "Fist of the Fleet" was originally commissioned as Torpedo Squadron 17 (VT-17) in 1943. During World War II, they flew the TBF Avenger and SB2C Helldiver attack bombers.