Just one year ago, the Taliban insurgency was a furtive, loosely organized guerrilla force that carried out hit-and-run ambushes, burned empty schools, left warning letters at night and concentrated attacks in the southern rural regions of its ethnic and religious heartland.

Today it is a larger, better armed and more confident militia, capable of mounting sustained military assaults. Its forces operate in virtually every province and control many districts in areas ringing the capital. Its fighters have bombed embassies and prisons, nearly assassinated the president, executed foreign aid workers and hanged or beheaded dozens of Afghans.

The new Taliban movement has created a parallel government structure that includes defense and finance councils and appoints judges and officials in some areas. It offers cash to recruits and presents letters of introduction to local leaders. It operates Web sites and a 24-hour propaganda apparatus that spins every military incident faster than Afghan and Western officials can manage.

Over the past two years, the Taliban’s revival has been fueled by fast-growing popular dissatisfaction with Karzai’s government, which has failed to bring services and security to much of the country. Deepening public resentment against civilian deaths caused by U.S. and NATO alliance airstrikes is another factor.

One aspect of the game the Taliban now clearly dominates is the propaganda war over battlefield victories, defeats and casualties. Once composed of largely illiterate fighters and clerics who shunned modern technology as un-Islamic, the Taliban now uses a variety of high-tech means to communicate its version of events, often far faster than its adversaries.

This issue has crystallized with the controversy over civilian casualties inflicted by U.S. and NATO airstrikes, especially a village bombing last month near Herat in western Afghanistan. Although civilian deaths have been frequent and real, officials say the Taliban quickly broadcasts exaggerated tolls, stoking public anger, while foreign military officers may take days to respond.