In addition it seeks to end the armed conflict and create an anti-narcotic strategy.

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The third step would be the signing of an agreement to "put an end to armed conflict", Mr de la Calle said, adding that the final agreement would be "put to the public".

BBC: Colombia and Farc negotiators launch Norway peace talks

America is pressing for sanctions if Iran continues to pursue its nuclear programme, and some senior American officials believe that the quarrel will ultimately end in armed conflict maybe with a raid on Iran's nuclear facilities.

ECONOMIST: Charlemagne

Referring to the ELN, Mr Santos said that if the group was serious about an end to the armed conflict, it too could be part of peace talks.

BBC: Colombia agrees to hold peace talks with Farc rebels

The talks aim to end five decades of an armed conflict that has killed an estimated 600, 000 people in Colombia.

BBC: Farc ceasefire 'to end' as peace talks resume in Cuba

Turkey's aims to become a leading power in the Middle East - and eventually in Europe mean it must end its 30-year armed conflict with Kurdish rebels, our correspondent adds.

BBC: Turkey Kurds: PKK chief Ocalan calls for ceasefire

"As battles between government forces and anti-government armed groups approach the end of their second year, the conflict has been overtly sectarian, " the U.N.

CNN: Syrian fight now 'overtly sectarian,' U.N. says