Angola is a country "exceptionally equipped" with resources that can briefly transform it into an economic center and a key core of stability, Gambari told a Luanda news conference.
He stressed that the experiences of Angola in conflict resolution and post-war reconstruction can also offer a useful lesson to the rest of the world.
To preserve Angola achievements in the peace process, Gambari advised both the Government and UNITA to keep complying with their compromises assumed under the Final Minutes on the conclusion of the former Joint Commission for peace.
As the country advances towards transition from emergency to recovery and reconstruction, he said, the UN is transferring all its responsibility for the outstanding tasks to the groups in charge of humanitarian and development actions under the leadership of a resident coordinator.
He reminded that the United Nations invested enormous resources in Angola and suffered great losses in the achievement of peace, including the death of former Secretary-General special representative Alioune Blondin Beye.