Strong bilateral economic ties under USMCA, extensive security cooperation including extraditions and intelligence sharing, and Mexico's firm rejection of unilateral intervention on its soil have sustained trader consensus against a U.S. invasion in 2026. Despite early-year rhetoric around cartel designations as terrorist organizations and limited naval actions, officials from both nations have emphasized joint operations that reduced fentanyl flows without violating sovereignty, aligning with historical patterns where full-scale military incursions remain rare due to high diplomatic, economic, and operational costs. Near-term catalysts such as border exercises or cartel leadership disruptions have reinforced coordination rather than escalation. Realistic shifts could still arise from abrupt breakdowns in talks, major cross-border incidents, or policy changes in the remaining months, though these would likely favor targeted strikes or sanctions over invasion.