They proposed new government-to-government talks aimed first at a two-year deal, then at a long-term revision of the treaty.
Under Mr Santos' predecessor, Alvaro Uribe - in power between 2002 and 2010 - the Colombian government refused to hold talks with the Farc.
In New York, the so-called "six plus two" nations -- those neighboring Afghanistan along with the United States and Russia -- were slated to resume talks on a post-Taliban government.
He told the BBC's Hausa service that the group was happy for Mr Gaddafi to continue as mediator and that it was willing to have face-to-face talks with the government of Niger.
Colombian government-ELN to resume peace talks in Caracas.
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In Greece, for instance, the hard-pressed Socialist government of George Papandreou talks up social cohesion as a reason to avoid unduly large public-sector pay cuts in its urgent fiscal retrenchment.
Representatives of Hamas, its secular rival Fatah, and smaller Palestinian parties gathered this week in Cairo for what Egyptian officials portray as make-or-break talks to forge a transitional government ahead of an election next January.
Members of Zimbabwe Lawyers for Human Rights protested in the streets last week to highlight her disappearance, and the MDC threatened to break off power-sharing talks with the government if she and other abducted MDC supporters were not released.
The rebels joined a power-sharing government in January after talks brokered by regional leaders to end a rebellion they launched last year.
The rebels had joined a power-sharing government in January after talks brokered by regional leaders to end a rebellion they launched last year.
The government tried to enter talks on a regional free-trade agreement last year, but was pushed back by farmers, opposition politicians and even its own party.
Should the world-trade talks ever get close to a deal, the government would be unlikely to resist pressure to reduce its dairy protection.
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Also on Sunday, the government restated its offer to hold peace talks with the rebels - a day after they issued a similar statement.
Also on Monday, UK Foreign Secretary William Hague arrived in the Malian capital, Bamako, to hold talks with the Malian government and commanders of the African-led intervention force.
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With all eyes riveted on the debt talks and efforts to avert an economy-busting government default, little attention is being paid to another debt that is similarly ballooning out of control and threatening to spur its own economic chaos.
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At the time of the Swiss-brokered talks, it looked like the Indonesian government was finally facing up to its inability to subdue Aceh by military means alone.
Mr Nur, currently in exile in Paris, demands that the government should provide security, allow the displaced to return to their villages and disarm the pro-government "janjaweed" militias as a precondition for any talks.
China's government praised the food package as a prelude to resuming the stalled six-party talks.
Tens of thousands of people in Colombia have taken part in marches to support the continuing peace talks between the left-wing Farc rebels and government negotiators.
Keen not to jeopardise the respite, government ministers have adopted a milder stance on the Israel-Palestine talks and called for reconciliation with Hamas's rival group, Fatah.
Kim Jong Il, its despotic leader, is desperate for financial aid and his government had recently signalled that it was keen to return to the six-party talks.
Mr Ross wants Algeria's government, Polisario's main backer, to become a fully-fledged party to the talks, but it has refused so far to join in, saying that only Polisario can speak for the Western Saharans.
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He reaffirmed his commitment to further talks with the government to avert next week's second, eight-day stoppage.
Rejuvenating the Middle East peace process is another key element that could enhance stability, as are talks underway between the Turkish government and Kurdish rebels to resolve their decades-long conflict.
Talks continue to form a new government critics accuse Interim Prime Minister Ibrahim al-Jafari of weak leadership.
Talks are also to begin with the Irish government over the provision of year-round cover for the Irish Sea.
Meanwhile, Iran's new government is defiantly refusing to re-suspend uranium work that it has started up again and that brought talks with Britain, France and Germany to a halt.
The factories reopened after three-way talks between government ministers, manufacturers and workers' unions, and the government promised to give ration cards to workers to buy commodities at subsidized rates.
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