US-Mexico security cooperation has intensified under President Claudia Sheinbaum, with expanded joint operations, intelligence sharing, and Mexican troop deployments along the border contributing to historic lows in crossings and reduced fentanyl seizures. Reports indicate the Trump administration has paused earlier considerations of airstrikes or land operations inside Mexico, citing these bilateral efforts and preferring partnership over unilateral action. US military strikes continue against suspected drug vessels in the Caribbean and eastern Pacific, while troops reinforce the US side of the border amid cartel drone activity and isolated incidents. Southcom has kept broader options open, yet confirmed developments emphasize coordinated enforcement rather than direct intervention on Mexican soil. Scheduled diplomatic and trade talks could further shape escalation risks through year-end.