Cartel-plagued Mexican city pins hopes on Trumps anti-drug trafficking pressure

Before dawn, an elementary school principal in the capital of Mexico’s Sinaloa state checks various chats on his phone for word of shootouts or other incidents.If there’s danger, he sends a message to his students’ parents suspending classes.It isn’t the only new routine in Culiacan, a city of 1 million residents that for the past six months has been the battlefield for the two main factions of the Sinaloa drug cartel.The violence has limited the hours to bury the dead.

Bands that played big parties now play for money at intersections.Any loud noise sends children scurrying for cover.

And those who live on the shifting front lines fear for their lives daily.This is the first extended period of violence that has touched Culiacan’s residents because there was safety in the cartel’s total domination.Now, many residents are grateful for the pressure applied by US President Donald Trump to get Mexico to go after the cartels and some are optimistic that this difficult period could change the persistent view that the cartel has been their protector.It started in September, more than a month after Ismael “El Mayo” Zambada — the Sinaloa cartel’s oldest and most astute leader — says he was kidnapped by one of the sons of former leader Joaquín “El Chapo” Guzmán and taken to the US where they were both arrested.It unleashed a power struggle between both cartel factions and the unwritten agreement to not attack residents uninvolved in the drug trade was broken.There were carjackings, kidnappings, innocents caught in crossfires and cartel roadblocks where gunmen would scan people’s cell phones looking for any trace of contact with the other side.

According to government data, there have been more than 900 killings since September.A resident of Costa Rica, a small town south of the capital, traced the front line on the horizon: on one side the “Chapos,” on the other the “Mayos.” He, like most others, requested anonymity because of...