PUERTO CACHICAMO, Colombia-The pandemic closed the only school in this remote hamlet, long a stronghold for Marxist guerrillas. With no internet connection for virtual classes, 16-year-old Danna Montilla told her family she was leaving to find work, but instead authorities say she joined a narco-trafficking rebel group.

Last month, Colombia's military bombarded the group's jungle camp, killing Danna, another underage girl and 10 others. Residents here said her death underscored a grim reality: Armed gangs have found fresh recruits from an ample pool of youths who, like Danna, have been out of school because of the coronavirus pandemic.

[continues 1200 words]

YOKY RIDGE, Colombia-On a hilltop base shielded with sandbags, police sharpshooter Jose Diaz gazed into thick jungle as a fellow commando checked tripwires protecting the stronghold. A radioman listened in on the fighters they were battling.

"They're always looking for the right moment to attack our base," said Hector Ocampo, commander of the Colombian detachment in a cocaine-trafficking corridor near Panama.

Their adversaries weren't the FARC rebels that security forces had long fought, but a cocaine-trafficking gang known as the Gulf Clan. In the year since the powerful Marxist guerrillas disarmed, drug gangs like this one have battled each other and the state for control of the booming cocaine trade in remote regions where the FARC once ruled.

[continues 872 words]