FARC FundingFrom Wikipedia
"
Financing
FARC receives most of its funding—which has been estimated to average some $300 million per year—from taxation of the
illegal drug trade and other activities, ransom kidnappings, bank robberies, and extortion of large landholders, multinational corporations, and agribusiness. From taxation of illegal drugs and other economic activity,
[211] FARC has been estimated to receive approximately 60 to 100 million dollars per year."
It sounds like the FARC are getting tired of fighting a losing battle, the reason for attempting a peace treaty
https://www.unric.org/en/colombia/27013-the-guerrilla-groups-in-colombia
"Recently, the Farc, which is on US and European lists of terrorist organisations, has suffered a series of blows, including the deaths of several top commanders.
On 23 September 2010, the group's top military leader, Jorge Briceno, also known as Mono Jojoy, was killed in a raid on his jungle camp in the eastern region of Macarena.The group's founder and long-time leader, Manuel "Sureshot" Marulanda, died in 2008 of a heart attack.
The most dramatic setback was the rescue by the military of 15 high-profile hostages, including the former presidential candidate Ingrid Betancourt in 2008. The hostages had long been seen as a key element in the rebels' attempts to exchange their captives for jailed guerrillas.President Alvaro Uribe, who swept to power in 2002 vowing to defeat the rebels and was re-elected in 2006, launched an unprecedented offensive against the Farc, backed by US military aid.
Desertions from the rebel ranks suggest morale has been hit. The group had about 16,000 fighters in 2001, according to the Colombian government, but this is believed to have dropped to about 8,000."