What was the process of the Okinawa campaign?

The Japanese army has 654.38 million people and 250 planes in Okinawa. There are dozens of minefields and anti-ship obstacles in the surrounding waters, and 500 kamikaze attack aircraft are assembled in nearby islands. Allied forces participated in the war with 7 US special mixed fleets, 450,000 British special mixed fleets 1 unit and 457 warships 1.457 (36 aircraft carriers and 2 carrier-based aircraft1.08). On March 27th, American troops captured the Qingliangjian Islands in the west of Okinawa, which served as a base for naval advancement. On April 1 day, after fire preparation, the US military landed successfully and established a wide landing site. On April 5, the Japanese army began to resist strongly. In June, Japanese Kamikaze commandos' attack planes and bombers sank 16 American ships. On the 7th, American planes sank the battleship Yamato. Kamikaze attack aircraft have caused heavy losses to the US military alert radar ships, and the number of US pilots is also increasing. On the island, the first line of defense of the US military attacking the Japanese army was frustrated, and it was impossible to break through after 10 days of fierce fighting. On April 19, the US army attacked again and broke through the Japanese defense line on the 24th. On May 8th, American troops attacked the Japanese second line of defense, and it didn't work until 2 1. Nearly two months of continuous operations have exhausted the physical strength and energy of the commanders of the Fifth Fleet. Nimitz was forced to replace all senior commanders. Spruance was replaced by halsey, and the Fifth Fleet was renamed the Third Fleet. On June 22nd, the battle ended, and the 65438+ Wan Shoujun was wiped out.