Ever since modern environmentalism took off in the 1960s, people have tried to undo the damage humans have caused to nature.

A Colombian armed group comprised of ex-guerrillas who rejected a 2016 peace deal, claimed responsibility Friday for a wave ...

The main dissident faction of the former Revolutionary Armed Forces of Colombia (FARC) guerrilla group on Friday denied ...

A retired high-ranking officer in Myanmar’s military has been shot dead by a self-proclaimed urban guerrilla group near his home in the country’s biggest city.

It's been 40 years since the controversial activist group Guerrilla Girls formed. Their most powerful campaign, the "naked ...

The explosions on Tuesday were likely caused by a guerrilla group that splintered from the Revolutionary Armed Forces of ...

Colombia was rocked by a string of 24 coordinated bomb and gun attacks that killed at least seven people across the country's ...

The FARC -- the country's biggest rebel group -- signed a deal with the government in 2016 and laid down its arms. But some groups rejected the demobilization process and regrouped in two ...

Two dozen coordinated bomb and gun attacks killed at least seven people across southwestern Colombia on Tuesday, just days after presidential hopeful Miguel Uribe was shot in the head, sparking ...

A Colombian armed group comprised of ex-guerrillas who rejected a 2016 peace deal, claimed responsibility Friday for a wave of bomb and shooting attacks that killed seven people this week.

Drawing on a long history of resistance, Ukraine is effectively using asymmetric and guerrilla warfare tactics to counter ...

BOGOTA - The main dissident faction of the former Revolutionary Armed Forces of Colombia (FARC) guerrilla group denied any responsibility for the attack against Colombian Senator Miguel Uribe, in a ...