KABUL: For Taliban militants and US strategists alike, all roads in this impoverished country of mountain passes, arid deserts and nearly impassable goat tracks lead to this ancient capital of 3 million people nestled in a high and narrow valley.
The Taliban made their intentions clear over the weekend, mounting spectacular coordinated attacks that spawned an 18-hour battle with Afghan and Nato forces.
And now, the US is gearing up for what may be the last major American-run offensive of the war — a bid to secure the approaches to the city.
While bombings and shootings elsewhere in Afghanistan receive relatively little attention, attacks in the capital alarm the general population, undermine the government's reputation and frighten foreigners into fleeing the country. That's why insurgents on Sunday struck locations that were so fortified they could cause little or no damage, including the diplomatic quarter, the parliament and a NATO base.
''These are isolated attacks that are done for symbolic purposes, and they have not regained any territory,'' US Defense Secretary Leon Panetta said Monday.
The US-led spring offensive, expected to begin in the coming weeks, may be Nato's last chance to shore up Kabul's defenses before a significant withdrawal of combat troops limits its options. The focus will be on regions that control the main access routes, roads and highways into Kabul from the desert south and the mountainous east. These routes are used not only by militants but by traders carrying goods from Pakistan and Iran.
The strategy in eastern Afghanistan involves clearing militants from provinces such as Ghazni, just south of the capital. The pivotal region links Kabul with the Taliban homeland in the south and provinces bordering Pakistan to the east.
Nato, under US command, will also conduct more operations in eastern provinces such as Paktika and Paktia that are considered major infiltration routes to the capital from insurgent safe havens in Pakistan.
Afghan and US officials blamed the Pakistan-based Haqqani network, which is part of the Taliban and has close links with al-Qaida, for the weekend attacks that left 36 insurgents, eight policemen and three civilians dead in Kabul and three eastern provinces. But Army Gen. Martin Dempsey, chairman of the US Joint Chiefs of Staff, said officials have not concluded whether the attacks emanated out of Pakistan.
Declining numbers of international troops in the coming months are also forcing coalition forces to focus less on remote and thinly populated places such as eastern Nuristan. They hope to move responsibility for those areas to the Afghan security forces.
Coalition forces last summer made gains in traditional Taliban strongholds such as Kandahar and Helmand provinces in the south, areas they must now hold with fewer troops.
By September, as many as 10,000 US Marines are scheduled to leave Helmand and hand over the lead for security to Afghan forces in the former Taliban stronghold.
''It's going to be a very busy summer,'' Gen. John Allen, the top US and Nato commander, said recently. ''The campaign will balance the drawdown of the surged forces with the consolidation of our holdings in the south, continued combat operations'' and an effort to push Afghan security forces into the lead.
The US this month finished moving the 1st brigade of the 82nd Airborne into Ghazni to help clear out a Taliban stronghold in Andar district. It could be one of the largest remaining American clearing operations of the war.
It is not known when that operation will take place, but Ghazni is located at a key chokepoint with the country's main highway from the south to Kabul running through it. The highway runs just past Andar district.
''If you secure Andar, you have secured Ghazni, and you have secured Afghanistan,'' the governor of Ghazni, Musa Khan, told US forces last week at a handover ceremony with departing Polish troops.
Eliminating the Ghazni problem is an important part of the plan to transition security responsibility from foreign forces to the nascent Afghan National Security Forces.
After September, the US-led coalition may not have enough troops on the ground for such large-scale operations and will increasingly have to depend on the Afghans to take the lead.
The US-led coalition is keen to show that the 330,000-strong Afghan forces are capable of filling in a vacuum left by the withdrawal of 33,000 US forces by the end of September. It also wants to use them more and more in operations against insurgent forces in key battlegrounds such as the east.
Last week Afghan forces carried out an operation in eastern Nuristan, a Taliban stronghold, with only support from coalition forces.
''This was yet another example of the successful transition we have been seeing throughout the past year, as the ANSF are planning, leading and executing very productive combat operations against the insurgency,'' Allen said.
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