What was the largest amphibious operation in the Pacific?

The largest amphibious operation in the Pacific was the Battle of Okinawa. This operation took place from April to June 1945 and was significant for several reasons. Okinawa was strategically important as it served as a staging area for the planned invasion of the Japanese home islands.

The scale of the operation was enormous, involving over 180,000 troops and a significant number of naval vessels. The campaign showcased the United States' commitment and capability to conduct large-scale amphibious assaults, as it involved extensive planning and coordination between land, sea, and air forces. The extensive beachhead established at Okinawa allowed for deeper incursions into Japanese territory, which had a lasting impact on the course of the Pacific War.

In contrast, while other operations such as Guadalcanal, Iwo Jima, and Tarawa were also critical to the overall strategy in the Pacific, they did not match the size and scale of the Okinawa campaign. For instance, Guadalcanal marked the first major Allied offensive against the Empire of Japan but was smaller in scale than Okinawa. Iwo Jima was an essential strategic location but was characterized by intense combat lasting over a month, and Tarawa, while notable for its ferocity and rapid assault, was also