In terms of number of ships , the Okinawa invasion fleet was larger. In terms of casualties the number was far greater at Okinawa. The US Navy deaths were higher than Marines or Army.
There was no resemblance more than any other past US military operation. However, the missions were different. During WWII the Phillippines was a battle to retake it from the enemy. In Vietnam, the...
In some cases the two invasions were quite similar, Hitler and Napoleon were trying to fight a war on two fronts, Napoleon had 220,000 men tied up in Spain when he attacked Russia and Hitler was...