Sinaloa Cartel armed wing 'Los Rusos' targeted in Mexicali fentanyl busts

Mexican authorities have arrested operators linked to 'Los Rusos', an armed wing of the Sinaloa Cartel, and seized fentanyl in Mexicali. The operations signal continued pressure on cartel sub-groups, but the full scope of 'Los Rusos' remains unclear. This matters as fentanyl trafficking drives US-Mexico security cooperation.