The Pakistan army spokesperson Maj-Gen. Asif Ghafoor has said work on the most sensitive part of the total 2,600km border with Afghanistan has almost completed.
About 1,200km fencing commenced last year, and 900-kilometre-long portion of fence along the war-torn country has been completed.
The military spokesperson was briefing journalists at Ghulam Khan air base in North Waziristan tribal district.
The project is costing about Rs70 billion.
Ghafoor said the fence has helped check the movement of terrorists from across the border.
He said situation would improve after the completion of the project next year.
Gadgets and surveillance equipment to keep vigil on any movement from across the border are being installed.
He said Pakistan played an important role in mutual settlement which is in the interest of all stakeholders.
Pakistani troops are in the process of area consolidation. Resettlement of the internally displaced persons (IDPs) is almost 95 per cent completed and steps are being taken to resettle about 4,000 families, who had gone to Afghanistan.
Since the 9/11 attacks on the twin towers in the U.S. and the subsequent start of the War on Terror, the tribal areas along the Pakistan-Afghanistan border became home to terrorists.
They have carried out attacks on both sides of the border and found sanctuaries in these areas.