Armenian and Azerbaijani officials said on Thursday that they had agreed the text of a peace agreement to end nearly four decades of conflict between the South Caucasus countries, a sudden breakthrough in a fitful and often bitter peace process.

But hurdles remain. Azerbaijan also said Armenia’s constitution must “eliminate the claims against the sovereignty and territorial integrity of Azerbaijan,” as a prerequisite to allow for the signing of the peace treaty.

PARIS (Reuters) - French President Emmanuel Macron said on Thursday that the agreement of peace treaty terms between Armenia and Azerbaijan should open the way for a lasting peace deal in the region.