Colombia’s president said his country’s FARC (Revolutionary Armed Forces of Colombia) rebel group is prepared to return to the battlefield if peace negotiations fail.
Juan Manuel Santos has promised Colombians a referendum on a pending peace deal between the rebels and the government.
Peace negotiations have been ongoing for more than three years.
Last month the government agreed a plan to reintegrate child soldiers from FARC into society.
A March deadline for ending five decades of armed conflict was missed because disagreements remained.
The fighting has cost the lives of 220,000 people and displaced millions.