Restoring America’s Maritime Dominance in the Western Hemisphere

Strategic Context & Maritime Posture

The geopolitical landscape of the Western Hemisphere is defined by the United States’ imperative to maintain regional hegemony and secure maritime approaches against encroaching peer competitors, specifically China and Russia. The primary state actors are the United States, seeking to preserve its sphere of influence, and revisionist extra-regional powers establishing strategic footholds in Latin America through infrastructure investments. The proposed security framework designates the U.S. Coast Guard (USCG) as the lead maritime security agency, making it the "supported" service. In

this realist architecture, non-state entities, such as transnational criminal organizations, are analyzed as instruments of systemic friction that external rivals exploit to weaken regional governance and challenge American dominance.

Regional Naval Deployments

This realignment addresses a conflict phase characterized by sub-threshold gray-zone operations and hybrid warfare, rather than conventional kinetic confrontation. Extra-regional rivals leverage economic statecraft, dual-use port infrastructure, and maritime assistance to project power below the threshold of direct military escalation. By positioning the USCG as the lead agency, Washington seeks to counter these hybrid operations using a constabulary force that possesses the legal authority and operational flexibility to operate within the territorial waters of sovereign partners. This operational shift allows the United States to manage sub-threshold friction without triggering conventional military escalation.

Cooperative Alliances & Quad-AUKUS Posture

A structural analysis of this posture reveals a complex balance of material capabilities and strategic positioning. The USCG possesses unique statutory authorities and specialized assets optimized for low-intensity maritime security, whereas U.S. Navy assets are increasingly constrained by global commitments in the Indo-Pacific. However, the structural position of the United States in its near-abroad is challenged by domestic political fragmentation and budgetary limits, which restrict USCG fleet modernization. The strategic endurance of this posture ultimately depends on domestic cohesion and the political will to resource a constabulary strategy that balances regional dominance with global high-end deterrence.

Strategic Implications

The strategic implications of this shift present critical trade-offs. Negatively, elevating the USCG's regional role risks resource depletion and the diversion of assets from primary global theaters like the Indo-Pacific. Conversely, the realignment serves a vital defensive function by reinforcing regional deterrence and signaling a renewed commitment to the Monroe Doctrine. By establishing a cohesive command structure under the USCG, the United States strengthens its defensive depth, deters extra-regional maritime encroachment, and stabilizes its peripheral security environment, thereby enabling high-end naval forces to focus on global balance-of-power competition.