Government sends troops into coca-rich northeast Catatumbo region in bid to quell hostilities among rebel groups.

At least 80 people have been killed and more than 18,000 forced to leave their homes in Colombia amid escalating violence ...

His foreign minister just abruptly resigned. A deadly wave of violence between fighting guerrilla groups is endangering his nation’s hard-won peace accord, and 17 of his countrymen, former soldiers ...