ISLAMABAD (AFP) – Pakistan's leader has pleaded for dialogue, not war, to fight terrorism in South Asia but told India not to push Islamabad too hard for action against extremists one month after the Mumbai attacks.

In an emotional speech delivered Saturday on the first anniversary of the assassination of former premier Benazir Bhutto, President Asif Ali Zardari -- her widower -- said Pakistan would fight the ""cancer"" of extremism.
Zardari's comments came as the United States, Russia and other nations tried to defuse tensions between Pakistan and India, which quickly escalated on Friday after officials here announced that troops had been moved to the border.
India has blamed the Mumbai attacks, which left 172 dead, on the banned Pakistan-based militant group Lashkar-e-Taiba (LeT), and accused Islamabad of not doing enough to clamp down on it -- something Zardari firmly rejected.
""Dialogue is our biggest arsenal,"" he told dignitaries gathered at the Bhutto family home to honor the slain opposition leader, who was killed on December 27 last year in a gun and suicide attack.
""We have non-state actors. Yes, they are forcing an agenda on us,"" the Pakistani leader said.
But on the subject of future action against such movements, he said in a direct remark to India: ""We shall do it because we need it, not because you want it.""
""This mettle has been tested many times. Please do not test it again ... Allow us the freedom of democracy, allow us the freedom of choice,"" he said.
He welcomed U.S. president-elect Barack Obama's plans for fighting terror in South Asia -- what he dubbed a ""regional cure for this cancer"" -- and said Islamabad was ready to play its part.
""We will cure it, we will solve it, we will correct it,"" Zardari said.
But he rejected the notion that conflict between the nuclear-armed neighbours could solve anything, saying: ""We have lost our people -- we do not talk about war, we do not talk about vengeance.""
India and Pakistan have fought three wars since independence from Britain in 1947, two of them over the disputed Kashmir region.
They came to the brink of a fourth war in late 2001 after an attack on India's parliament which New Delhi also blamed on the LeT. Both sides deployed hundreds of thousands of troops but retreated after international mediation.
Senior Pakistani security and defense officials described last week's troop movements toward India -- and away from Afghanistan, where Islamabad is battling Taliban and Al-Qaeda militants in the tribal areas -- as ""limited"".
An Indian army spokesman told AFP that no extra troops have been redeployed to the common border.
The United States and Russia, joined by Iran, China and Saudi Arabia, consulted repeatedly with India and Pakistan at the weekend to restore calm.
White House spokesman Gordon Johndroe urged both sides not to take ""any unnecessary steps that raise tensions in an already tense situation,"" while Russia's Foreign Ministry called for ""maximum restraint"".
Indian Prime Minister Manmohan Singh met with his military chiefs to discuss strategy, and his Foreign Minister Pranab Mukherjee urged Pakistani leaders not to ""unnecessarily try"" to create tensions.
""Do not try to deflect the issue. A problem has to be tackled face-to-face. Evading a problem will not help to get rid of it,"" Mukherjee said.
Islamabad has said it wants to cooperate in the investigation but that New Delhi has offered no solid proof that Pakistani nationals were involved in the Mumbai attacks.
Pakistan's media welcomed the calls for calm, saying neither side could afford any further escalation in tensions.
""Mercifully... the voices of reason and restraint have not been drowned out,"" the English-language newspaper Dawn said Sunday in a commentary, urging both India and Pakistan to avoid war and ""let sanity prevail.""
""This is one victory the terrorists must be denied.""
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Pakistani Rangers (in black) and Indian Border Security Force personnel (in brown) perform the daily retreat ceremony on the India-Pakistan Border at Wagah on December 10.