The leader of U.S. armed forces in the Pacific and Asia, Adm. William Fallon, says the commander of Special Operations Forces in this region, Maj. Gen. David Fridovich, is "the tip of the spear" in the war against terror in the vast area stretching from Hawai'i to India.

An immediate target for that spear is a remote island chain running from the southern Philippines, where Muslim terrorists train, to Malaysia and Indonesia. Terrorists infiltrate those nations by island-hopping down that chain, then fade into the population; U.S. special operations troops often slip quietly into position there to help block the infiltration and to break up terrorist cells.

Beyond that, U.S. Special Operations Forces work mostly out of the public eye throughout Southeast Asia to assist national authorities in combating terror. Southeast Asia has become an active arena for international terror even though Muslims there are considered to be tolerant of other religions and secular institutions.

The objective of the radical Muslims, a relatively small portion of the populations, is to overthrow existing national governments in Indonesia, Malaysia, and Brunei and local governments in southern Thailand and the southern Philippines. They would then forge a new nation ruled by Islamic law.

Radical Muslim movements in Southeast Asia are mostly homegrown but over time have become loosely affiliated with al-Qaida, the terrorist band led by Osama bin Laden. Many Southeast Asian terrorist leaders in the 1990s were trained in Afghanistan, bin Laden's base.

Probably the most active group is Jemaah Islamiyah, of Indonesia; it was charged with the Bali bombing of 2002 in which 202 people died in the first terrorist act of the modern day in Southeast Asia. Another is Laskar Jihad. Still another Indonesian group is Laskar Pembela Islam. A smaller group is Kumpulan Mujahideen Malaysia.

In the Philippines are Abu Sayyaf, the Moro National Liberation Front, and a splinter group, the Moro Islamic Liberation Front. They trace their origins to the Moros of Mindanao, Muslims who sought to secede from the largely Roman Catholic Philippines in the late 19th Century.

Against this array, the Special Operations Command under Fridovich is the military vanguard against terror in the Pacific and Asia. At his promotion ceremony last month, Adm. Fallon said Fridovich's troops were "engaged at the grass roots level" in establishing working relations with other nations.

Special Operations Forces, known as SOF, include Army Rangers and Special Forces (Green Berets), Navy SEALS (sea, air, land), the Air Force's SOAR (special operations aviation regiment), a new Marine unit in training, and psychological operations and civil affairs units.

Much of SOF's work is clandestine and done in small groups that are assembled for a mission, deployed, and broken up once they get home. In addition to military skills, SOF are taught the basics of the languages and cultures of the nations to which they are dispatched.

Fridovich emphasized that a primary task of U.S. SOF was to work with Asians, not to fight terror by themselves. "We are teachers," he said. "We're building capacity when we're in various locations and we leave these areas when they are capable of doing it on their own.

"We work through, by, and with local forces and citizens. We work through the capability that the countries believe they need to get the mission accomplished. This is done by the countries we partner with, and we work with the local forces and citizens."

Not all have been successful. Since 2002, U.S. SOF units have sought to help the Philippine armed forces defeat the Abu Sayyaf. Fallon told a Senate committee, however, that the southern Philippines "remain a sanctuary, training and recruiting ground for terrorist organizations."

To enhance cooperation, Fridovich invited leaders of Asian SOFs from 22 nations along with academic specialists, counter-terror experts, scholars, and intelligence analysts to Honolulu for a week-long conference last month. Among them were representatives from China, with which the U.S. has sought to expand military exchanges.

A conference report asserted that terrorists and the West often compete for the support of deprived people. "Finding a way to get there first," the report said, "and give people a leg up without creating resentment and before the terrorists can influence them appears to be a key challenge."

The summary stressed effective counter-terrorist communications but added: "If we do not appreciate the complexity and richness of the values and concerns of the people with whom we are communicating, we will miss the mark."

Richard Halloran is a Honolulu-based journalist and former New York Times correspondent in Asia.