A reactionary movement to the establishment of the Genosha Army, as well as the violence waves created by the Pro Mutant terrorist group backlash. Over a dozen models of SENTINEL have been produced by various desingers and manufacturers. Stark Industries officially severed ties with the program in ‘97. Military interest lobbied for injunctions against Stark, but the supreme court refused to support the constitutionality of the injunction. With the withdrawal of Stark and it’s proprietary micro computing technologies, the government awarded the SENTINEL contract to Lexcorp.
The Lexcorp model of SENTINEL was dramatically more efficient, but also functioned more aggressively. The two years of Lexcorp production saw a 70% increase of apprehension related fatalities. The SENTINEL program eventually collapsed in the face of the Genosha Day Massacre. The USSR still contracts low grade SENTINELs to guard their internment camps, but have chosen to use outdated, nationalized STARK tech than risk the Lexcorp developed weapons.