Border Sovereignty, Filibusters, and the Apache Challenge (Crabb to 1882)

Crabb Filibuster and Its Aftermath

The Crabb expedition generated serious border security concerns as Americans feared for safety near the Mexican boundary. The US protested the Mexican execution of Crabb and his men; Mexican troops killed four men at Sonoita, with witnesses claiming they were on the US side, while Mexican officials argued Crabb had violated Mexican sovereignty and deserved punishment. Crabb's defeat marked the beginning of the end of filibustering in northern Mexico; subsequent filibuster schemes in the 1860s (e.g., William McKendree Gwin’s attempt to establish a Sonoran colony with French support) and the 1889–90 Baja California plots failed to gain traction or cross the border. Filibusters did not move the boundary line; instead they helped foster a Mexican identity in Sonora and reinforced the boundary as sovereign space that needed defense. The boundary line, established in the Gadsden Treaty, held steady.

UNMAKING NATIVE SPACE

The border’s sovereignty faced a more serious challenge than filibusters: the large Apache presence in the borderlands. For over thirty years after the boundary’s creation, the US and Mexico sought to constrain Apache movement through reservations, treaties, and prolonged warfare on both sides of the line, yet could not defeat them alone. The Apaches learned to manipulate the border to pit Mexicans and Americans against each other. It was only after the reciprocal crossing agreement in 1882 that the decades-long effort to displace the Apaches reached a turning point, showing that sometimes defending the border required transcending it.

APACHES AND THE BORDERLANDS

Although many Native groups inhabited the borderlands, Apaches represented the most significant challenge to sovereignty along the western border. The Apaches had reason to view the borderlands as their country, controlling a large area around where Arizona, New Mexico, Sonora, and Chihuahua meet. In the 1830s and 1840s, they rose in power, raiding deep into Mexico and driving Mexican settlers from northern Sonora. A Mexican observer in 1835 described the destruction of ranches in the San Bernardino Valley, illustrating the border’s future geography: “Today everything is desolation and ruins! Nothing remains but the memory of the atrocities and the victims sacrificed by the barbarians.” Unlike the United States’ conquest of Mexico, the Apaches did not implement a formal boundary survey; instead, place names and patterns of movement delineated the territory of Apache authority. The text notes a claim that, “All this country here belonged to us alone,” reflecting Apache assertions about control of the land.

SURVEYING THE BORDER AND ITS LIMITS

Despite ongoing efforts, the border did not yield to a formal survey by indigenous or colonial powers alone; sovereignty along the line remained contested, shaped by both state authority and Apache mobility, with the eventual 1882 crossing arrangement demonstrating that managing border space often required cooperation—if not crossing itself—to stabilize the boundary.