U.S.-Mexico economic integration through the USMCA and ongoing security cooperation on cartel operations and fentanyl interdiction continue to anchor bilateral ties, with recent joint intelligence efforts and Mexican-led actions against groups like the CJNG demonstrating preference for coordinated enforcement over unilateral intervention. The Trump administration has issued public warnings about military activities and reiterated offers for direct action, yet Mexico has consistently rejected troop deployments while delivering measurable reductions in cross-border flows. Congressional constraints on authorizing major conflict, combined with the absence of any declared state of war or comparable crisis, reinforce trader consensus against an invasion in 2026. Limited scenarios such as a major diplomatic rupture during the USMCA review or an unprecedented security incident could theoretically alter trajectories, though current patterns show sustained dialogue and incremental pressure instead.