In a departure from decades of diplomatic convention, the Trump administration is pressing Latin American governments to accept direct U.S. military participation in their domestic security operations — a posture that reframes Washington not as a distant partner but as an active combatant in the region's struggles against organized crime. Peru has emerged as a central test case for this doctrine, where the tension between the appeal of American firepower and the weight of national sovereignty plays out in real time. The shift raises enduring questions about the nature of partnership, the limit