How many Marine Divisions are there?

The United States Marine Corps is organized into a total of three active duty Marine divisions. Each division is a key component in fulfilling the Corps' mission to provide forces for the naval service that are trained, organized, and equipped to be capable of conducting all major operations from amphibious assaults to sustained combat operations.

The Marine Corps divisions consist of the 1st Marine Division, 2nd Marine Division, and 3rd Marine Division. Additionally, there is the 4th Marine Division, which is a reserve division, but it is not counted among the active duty divisions in terms of this particular question.

Understanding the structure of the Marine Corps, including the number of divisions, is fundamental knowledge for those involved in the Corps as it relates to operational capabilities and organization.