Colombia’s anti-government guerrillas have grown stronger under President Gustavo Petro’s three years in office.

An attack on a Colombian National Police helicopter and a suspected car bombing near a military air base left at least 14 people dead Thursday in what Colombian authorities are describing as terrorist acts.

Colombia's defense minister vowed Friday to defeat "desperate" armed groups after twin guerrilla attacks killed 19 people and deepened the country's worst security crisis in decades.Minister Pedro Sanchez huddled with top security officials in the tropical city of Cali,