Complex sentence: To overcome this force the US 6th Army committed its 1st Corps under Lt.Gen Eichelberger, some 50,000 men and a naval task force of 200 vessels of 7th Fleet under Rear Adm. DE Barbey.
Split into simpler sentences: To overcome this force the US 6th Army committed its 1st Corps under Lt.Gen. RL Eichelberger, some 50,000 men and a naval task force of 200 vessels of 7th Fleet under Rear Adm. DE Barbey.