Nimitz was made commander in chief of the U.S. Pacific fleet, which was fought under his direction, and won the battles of Okinawa.Nimitz was also an effective military strategist who commanded U.S. forces as they closed in on Japan. He commanded more than two million men and women, 5,000 ships and 20,000 planes. Only four five-star admirals were to be chose to lead during World War II and Nimitz was one of them.