Given the task definition and input, reply with output. In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

passage: The Pacific miniseries features the 1st Marine Division's battles in the Pacific, such as Guadalcanal, Cape Gloucester, Peleliu, and Okinawa, as well as Basilone's involvement in the Battle of Iwo Jima. It is based primarily on the memoirs of two U.S. Marines: With the Old Breed: At Peleliu and Okinawa by Eugene Sledge and Helmet for My Pillow by Robert Leckie. It also draws on Sledge's memoir China Marine and Red Blood, Black Sand, the memoir of Chuck Tatum, a Marine who fought alongside Basilone on Iwo Jima.
 question: is the pacific based on a true story?

Yes