Friday, July 10, 1998 Published at 14:21 GMT 15:21 UK
Guerrillas' 40-year war
Some members of Colombia's Revolutionary Armed Forces want to negotiate
The Revolutionary Armed Forces of Colombia is one of the oldest armed revolutionary movements still in existence.
Their main demands are for sweeping land ownership reforms, an end to free market economic policies, greater social spending and limits on the role of foreign multinationals in Colombia's oil industry.
The Revolutionary Armed Forces of Colombia (FARC) is estimated to have about 5,700 active armed members.
A Marxist group, it is said to finance its operation through kidnappings and links with Colombia's infamous drug cartels.
In 1997, 1,822 cases of abduction were reported in Colombia, 900 attributed to FARC.
It has formed a loose alliance, the Coordinadora Nacional Guerrillera Simon Bolivar (CNGSB) with two other groups, the ELN and EPL.
The ELN, the National Liberation Army, was formed in 1965 and is a pro-Cuban, Marxist movement. It is estimated to have about 2,500 active armed members.
An estimated 500 members of the EPL, the People's Liberation Army, are continuing an armed struggle. Most of the organisation's members abandoned violence as a tactic in 1991 when the Maoist movement became a political party.
One of FARC's main targets has been the control of a key road leading into the capital, Bogota, from the mountains in the north-west.
The road is the main route for food and petrol supplies to the city and has been regularly cut by the guerrillas.
In August 1996 FARC guerrillas attacked a military base in the south east killing 26 soldiers and capturing 60 others.
They were released 10 months later after the army had pulled out of a large area of territory.
During the March 1998 congressional elections 83 soldiers were reported killed during a battle with FARC.
Evidence of the link between guerrilla movements and drug cartels increased during 1996, when, in March, FARC attacked a drugs control police unit.
FARC and ELN also launched a major offensive at the same time that coca growers were holding protests about a crop-spraying eradication programme.
Despite their victories BBC correspondent John Simpson says some guerrillas feel they have reached a stalemate.
And Rocio Lopez, a local official who is in contact with the guerrillas, says she is sure both they and the government finally want to negotiate.
She said: "They are both beginning to realise now that there is no way of winning the war or of finding a solution to the conflict in the country except by dialogue. I think they are both getting to close to understanding that."