FARC Cease-Fire Lapses, Deemed Success A unilateral cease-fire by Colombia's main leftist rebel group set to end at midnight Sunday was deemed largely successful by analysts, who say it showed that divisions in the insurgency's ranks are relatively minor. The rebels' main negotiator in peace talks taking place in Cuba, Ivan Marquez, offered Sunday to extend the two-month cease-fire if the government would agree to embrace it. An alternative, Marquez told reporters in Havana as he headed into peace talks centering on agrarian reform, could be to "regularize the war" by obtaining promises from the government that it would stop placing military bases in population centers. There was no immediate response from Colombia's government, though President Juan Manuel Santos has refused to halt hostilities during peace talks that formally began in Havana in November after six months of secret negotiations. In a communique published Sunday, the Revolutionary Armed Forces of Colombia, or FARC, said it had not mounted "even a single attack on bases or fixed installations of the armed forces, nor on police barracks or posts." Dutch rebel Tanja Nijmeijer, from the Revolutionary Armed Forces of Colombia, or FARC, center, arrives with Jesus Santrich, right, for peace talks with negotiators from Colombia's government in Havana, Cuba, Saturday, Jan. 19, 2013. Nijmeijer, 34, is a middle-class child of the Netherlands who for the past decade has been mixed up in a Latin American revolution as a jungle fighter, at least once narrowly escaping death in a military bombardment. (AP Photo/Ismael Francisco, Cubadebate) Close It said that any casualties suffered by Colombia's security forces were dealt in self-defense. The FARC said that during the same period a year earlier it had killed at least 284 security force members and wounded 278. The rebels did not say how many casualties it had suffered during the unilateral cease-fire but at least 33 were killed in at least two major aerial bombardments on rebel camps. There were sporadic guerrilla attacks but analyst Jorge Restrepo of the independent CERAC think tank said they exhibited "relatively minor divisions within the FARC" about whether a unilateral cease-fire was appropriate. The Nuevo Arco Iris think tank said guerrilla actions during the period were down 87 percent from the year-before two-month period, according to its director, Leon Valencia. He said it counted nine hostile offensive actions out of a total of 41, with the rest being defensive or resulting from unintentional contact with security forces. Military officials said they were prohibited from providing numbers on combat or casualties during the two months. The national ombudsman, Jorge Armando Otalora, said in a report Friday that there had been 57 attacks by rebels against civilians or security forces, an average of one per day. One of them was an attack on a police post in the municipality of Guapi on Dec. 31 in which two police and four civilians were wounded. The FARC is believed to number about 8,000 fighters, down from about twice that amount a decade ago. Colombia's U.S.-backed military dealt it a series of withering blows during that time, including killing three members of its ruling Secretariat. Colombia's nearly half-century-old conflict has claimed tens of thousands of lives, most of them civilians. Associated Press Writer Anne-Marie Garcia contributed to this report from Havana.