Al-Qaeda is trying to "bring down" nuclear-armed Pakistan, US Vice President Joe Biden warned Sunday, days after a war review tip-toed around Islamabad's role in fighting extremists.

"Our overarching goal and our rationale for being there is to dismantle, ultimately defeat Al-Qaeda... to make sure that terrorists do not, in fact, bring down the Pakistani government, which is a nuclear power," Biden said.

The vice-president, in an interview with NBC's "Meet the Press" program, repeated threads of a one-year report on the US military surge in Afghanistan that pointed to progress but warned that more time was needed.

Unveiling the policy assessment on Thursday, President Barack Obama urged Islamabad to do more to rein in extremists holed up along the Afghan border but also renewed US commitment to major aid programs for Pakistan.

The report trod carefully on the uneasy US anti-terror ally following pointed criticisms of Islamabad's nuclear safety and other areas of policy revealed in the US cables published by WikiLeaks and other reports.

Many experts say Pakistan is far less willing to take action against militants seen as useful in fighting rival India or in preserving Islamabad's influence in Afghanistan.

While the war review called relations with Pakistan "substantial" -- a departure from private US assessments that question Islamabad's commitment to fighting extremists -- it did urge some readjustment.

"For instance, the denial of extremist safe havens will require greater cooperation with Pakistan along the border with Afghanistan," it said.

Biden measured success against Al-Qaeda by noting it had been restricted to efforts like the botched underwear attack on a US-bound jetliner last Christmas and a failed amateurish bombing in New York's Times Square in May.

"They are planning much smaller bore but yet deadly attempts to go after the United States of America. We saw that in the underpants bomber last Christmas. We saw that in the Times Square effort.

"We have significantly degraded and knocked off a lot of the main planners and organizers and trainers. Does that mean we've succeeded? No. Does that mean we're in much better shape than we were a year ago and two and three? Yes."

Obama on Thursday said Afghan progress was sufficient to permit a "responsible reduction" of US forces to begin in July 2011, though the size of the likely drawdown appeared limited.

The assessment comes one year after the president announced both a surge of 30,000 extra troops to Afghanistan and the conditions-based July troop drawdown.

earlier related report
China premier vows to boost strategic ties with Pakistan
Islamabad (AFP) Dec 19, 2010 - Chinese Premier Wen Jiabao vowed Sunday to boost strategic cooperation with Pakistan as he wrapped up a three-day visit to Islamabad that concluded deals worth around 35 billion dollars.

"It is our collective objective to strengthen strategic ties between our two countries," he told a joint session of Pakistan's parliament before returning to China Sunday afternoon.

Boosting trade and investment with Pakistan was the focus of the first visit by a Chinese premier in five years to the country, which is battling a Taliban insurgency and is at the forefront of the US-led war on Al-Qaeda.

Business leaders and cabinet ministers formalised around 35 billion dollars' worth of trade deals during the visit, signing a raft of agreements designed to prop up Pakistan's ailing economy and ease its crippling energy crisis.

Wen, who arrived in Pakistan straight from a visit to arch-rival India, Sunday predicted "sustained growth of our economic and trade ties" as the 60th anniversary of diplomatic relations between Beijing and Islamabad approached.

He welcomed Pakistani efforts to increase exports to China and said the two countries would explore the possibility of a currency swap agreement.

"The future of economic cooperation between the two countries is very bright," Wen said. "China is Pakistan's all-weather strategic partner."

Pakistan regards China as its closest ally and views the deals as extremely important to its moribund economy, which was dealt a huge blow by catastrophic flooding this year and suffers from sluggish Western investment.

The poverty-stricken country is reliant on China's clout to offset the perceived threat from rival India and rescue its economy.

But the fresh trade deals with Pakistan were dwarfed by those signed on Wen's trip to India, where he and his 400-strong delegation signed deals to double trade to 100 billion dollars a year by 2015.

Wen pledged Sunday that "China will remain steadfast in its support to Pakistan and will expect the same from the international community".

"The people of Pakistan will surely overcome (their) difficulties," he added.

Though not specifically mentioned, behind-the-scenes talks had been expected on China's help in building a nuclear power plant as part of Pakistani plans to produce 8,000 megawatts of electricity by 2025 to make up its energy shortfall.

The nuclear-armed Muslim nation, with a population of 167 million, produces only 80 percent of its electricity needs, starving industry that has slumped in the face of recession and three years of Taliban-linked bombings.

Pakistan imposed blanket security for Wen's visit, which coincided with a public holiday and the weekend, determined that suicide attacks and bombings that have killed 4,000 people since 2007 would not mar the occasion.

"Pakistan has rendered invaluable sacrifices in the war against terror," Wen said, urging the international community to respect Islamabad's efforts after leaked diplomatic cables showed US officials doubt the commitment of Pakistani politicians to fighting the Taliban and al-Qaeda.

"We should not link terrorism to any specific religion or nation, and avoid pursuing double standards while dealing with the issue. We should rather focus on the root causes of terrorism and ways to eliminate them," he added.

The two countries reaffirmed their resolve to "undertake substantive cooperation and jointly fight terrorism, separatism and extremism," said a joint statement issued after Wen's visit had concluded.

"The Chinese side reiterated that it respects the counter-terrorism strategy constituted and implemented by Pakistan in light of its own national conditions," the statement added.

"The two countries voiced support for the unity and territorial integrity of Afghanistan, the efforts of the Afghan government to advance peace, reconstruction and national reconciliation", it said.

Wen inaugurated a 35-million-dollar cultural centre built as a monument to Pakistani-Chinese friendship and met opposition leader Nawaz Sharif and senior figures in the military, which depends on China for hardware.

Local analysts say China's support for Pakistan comes at a price, which could increase as Beijing edges closer to superpower status.

"China will expect Pakistan to be more forthright in counter-terrorism," said political analyst Hasan Askari.

"It has worries about militancy in western China," where it wants to develop Kashgar city into a major industrial and economic centre, he added.