Kabul, Afghanistan ? As fighting in Afghanistan has intensified over the past three months, the U.S. military has conducted 340 airstrikes there, more than twice the 160 carried out in the much higher-profile war in Iraq, according to data from the Central Command, the U.S. military headquarters for the Middle East.

The airstrikes appear to have increased in recent days as the United States and its allies have launched counteroffensives against the Taliban in the south and southeast, strafing and bombing a stronghold in Uruzgan province and pounding an area near Khost with 500-pound bombs.

U.S. officials say the activity is a response to an increasingly aggressive Taliban, whose leaders realize that long-term trends are against them as the power of the Afghan central government grows.

Some experts believe that the Taliban, the fundamentalist Muslim party ousted by the U.S. invasion in 2001, have sensed an opening in the south as the central government in Kabul has failed to gain much influence there and as the United States prepares to transfer command to NATO.