Mexican President Claudia Sheinbaum has pledged to "defend Mexicans at every level" as tensions escalate between Mexico and the United States over immigration enforcement and foreign policy issues.

The Mexican government has expressed concern about the deaths of Mexican citizens while in US custody, marking a notable shift in diplomatic tone between the two nations. Sheinbaum has also criticized the Trump administration's decision to impose an energy blockade on Cuba, demonstrating Mexico's willingness to challenge US foreign policy decisions.

Sheinbaum has maintained a measured approach in dealing with the Trump administration over the past year, typically responding to provocations with diplomatic restraint. Her government has increased cooperation with US requests to crack down on drug cartels, going further than previous Mexican administrations in anti-cartel operations.

This cooperative stance appears aimed at preventing threatened US tariffs and potential military action against criminal organizations operating in Mexico. However, recent statements suggest Mexico may be taking a firmer position on issues affecting its citizens and regional interests.

The diplomatic tensions come as the Trump administration has intensified immigration enforcement and expanded foreign policy initiatives that directly impact Mexico's interests in the region.