The December 2025 National Security Strategy introduced what the Trump administration called a “Trump Corollary to the Monroe Doctrine” a formal declaration that the United States would reassert preeminence in the Western Hemisphere, deny non-hemispheric powers access to strategic assets, and authorize targeted military deployments against cartels designated as foreign terrorist organizations.
For those who spent decades operating in Latin American security environments, this represents a significant rhetorical and strategic shift. The question is not whether the diagnosis is correct it largely is, but whether the prescribed treatment matches the operational reality of the threat.
“The hemisphere has been neglected by Washington for years. The 2025 NSS names this accurately. But naming a problem and solving it are two different things and the gap between doctrine and operational capacity in the Western Hemisphere remains very wide.”
SOUTHCOM currently receives well under 1% of the Defense Department’s annual budget. It has no permanently assigned combat troops. The new Western Hemisphere Command consolidates Northern and Southern Command structures a sensible organizational step but structural changes do not automatically translate into the sustained operational presence that hemispheric security requires.
What the Corollary gets right: The framing of cartels as threats to U.S. national security not merely law enforcement problems reflects operational reality. These organizations control territory, operate paramilitary forces, and generate revenues that rival some national budgets. Treating them as the strategic threats they are is overdue.
What remains unresolved: Military tools are necessary but not sufficient. The Plan Colombia experience worked because it combined military pressure with institutional capacity building over sustained years. A doctrine that authorizes force without the partnership infrastructure to support it risks repeating the failures of every mano dura campaign Latin America has tried before.
The knowledge gap no policy memo can fill: What the Trump Corollary does not address and what no reorganization chart resolves is the institutional knowledge deficit at the operational level. Effective hemispheric security requires advisors who understand not just the geography, but the doctrine, the chain of command culture, the terrain, and the specific insurgent and cartel methodologies that have evolved over decades in these environments. This is knowledge that cannot be replicated by domestic analysts working from classified databases. It comes from years of front-line operational command inside allied armed forces navigating the same asymmetric environments, under the same bilateral frameworks, that U.S. policy is now attempting to re-engage at scale.
The hemisphere is not short of strategy documents. It is short of the practitioner-level expertise needed to translate those documents into operational reality. Bridging that gap between U.S. policy intent and on-the-ground execution — is precisely where allied military professionals with documented operational experience in Latin American environments have an irreplaceable role to play.
The Trump Corollary may be the right declaration at the right moment. Whether it produces durable security outcomes will depend not on the doctrine itself, but on the depth of the institutional partnerships and specialized human capital brought to bear in implementing it.
