What is the location of the 1st Marine Division?

The 1st Marine Division is indeed located at Camp Pendleton, which is situated in Southern California. This location serves as the primary base for the division, playing a critical role in readiness and training for Marine Corps operations. Camp Pendleton's expansive training areas and facilities enable the division to prepare effectively for various operational scenarios, whether they be amphibious assaults or other types of military engagements.

While Camp Lejeune is the home of other Marine units on the East Coast, and Okinawa is a vital overseas base with a significant Marine presence, the 1st Marine Division's primary base is specifically at Camp Pendleton. New Orleans does not host any major Marine Divisions, making it less relevant in this context. The correct response emphasizes the importance of familiarizing oneself with the specific assignments of Marine Corps divisions to enhance operational readiness and strategic understanding.