The Revolutionary Armed Forces of Colombia (FARC), which signed a peace agreement with the Colombian government in 2016, will continue to use the same acronym but will change their name to the Revolutionary Alternative Force of Colombia.
Colombian President Juan Manuel Santos was present on August 15, as the last weapons of the FARC rebel group were sealed in containers and taken away by the United Nations.
Former Revolutionary Armed Forces of Colombia (FARC) members have begun a new life Wednesday.
Arnault echoed Santos' words, saying the "exhaustive process" of disarming the rebels marked a new era.
At his side, Mr. Santos has locked up the last container has left, under United Nations supervision, the area of Pondores, one of the 26 where the Farc are grouped together for eight months.
Tuesday also marked the end of the U.N.'s first mission in monitoring the Colombian peace process with the removal of the last container of arms from FARC demobilization camps.
Almost 7000 men, women and minors, the Farc has left their weapons, which will be molten into three monuments erected to Bogota, at the united Nations headquarters in NY and Havana.
"Our mission has, up to today, gathered 8,112 arms in these containers and destroyed nearly 1.3 million cartridges", United Nations mission chief for Colombia Jean Arnault said at an event to mark the shipment.
Colombia's FARC rebel group revealed the new name of their political party Tuesday as they prepare to enter formal politics, leaving their armed past behind.
"Building peace is like building a cathedral, and today we are laying the foundation", said Santos, victor of last year's Nobel Peace Prize for his efforts to win an end to hostilities.
Become civil, the ex-guerrillas should live in the 26 areas that became "territorial space of training and re-adding".
Meanwhile, the U.N. High Commissioner for Peace, Monica Cifuentes noted that "the FARC have completely disarmed and have made the transition to legality".
FARC leader Rodrigo Londono said on Twitter that 22 FARC members had been killed this year despite the peace deal.