But, according to Pakistani sources, they have also killed some 700 civilians.
Pakistani sources claim that 26, 000 deaths occurred, whilst the international community quote anything from 200, 000 to three million deaths.
According to a Pakistani military source, the first bombing was targeted at a gathering of militants in a compound.
According to Indian sources as many as 30,000 - 40,000 men had crossed the line, while Pakistani sources put it at 5,000 -7,000 only.
Pakistani military sources indicate that the army has been surprised by the resistance the insurgents have been putting up.
Some samples match Pakistani and Russian sources which had contaminated imported Iranian equipment from those countries.
Gulf-based Pakistani sources said Zardari would make the trip for a medical check-up.
Pakistani sources claim the number is much lower, though having not completely denied rape incidents.
A Pakistani military source in the region admits collaboration with these fighters.
However, Pakistani sources state that the H-4 is a "beyond visual range bomb".