Which statement best defines an Expeditionary Strike Group (ESG)?

• A. A carrier-centric battle group focused on power projection.
• B. A surface warfare group designed for anti-access operations.
• C. A naval force centered on amphibious ships and Marines for expeditionary operations.
• D. An air defense network led by fighter squadrons.

Answer: (C)

An Expeditionary Strike Group is built around amphibious ships carrying a Marine Expeditionary Unit, creating a self-contained force capable of projecting power ashore through amphibious landing and related expeditionary operations. The anchor ships—amphibious assault ships with well decks—bring Marines, their equipment, and aviation to a favorable position, while escort ships provide protection and air defense as needed. This combination is specifically oriented toward rapid response, crisis containment, and landing operations, rather than the carrier-based power projection of a dedicated carrier battle group, the anti-access focus of a surface warfare group, or an air-defense network led by fighter squadrons.