President Obama linked the man accused in a botched X-Mas Day airline bombing to an al Qaeda affiliate based in Yemen on Saturday.

The president pledged that everyone involved in the attack would be held accountable. He also highlighted his administration’s attempts to crack down on extremist enclaves in Yemen, and reiterated his longstanding promise to “disrupt, dismantle and defeat” al Qaeda.

Obama has been criticized by some political opponents for not responding more aggressively to a botched December 25 attempt to blow up a Northwest Airlines passenger jet en route from Amsterdam, Netherlands, to Detroit, Michigan.

Umar Farouk AbdulMutallab is accused of trying to ignite explosives smuggled aboard the plane in his underwear. Obama confirmed Saturday that AbdulMutallab, 23, recently traveled to Yemen and “it appears that he joined an affiliate of al Qaeda.”

The group, al Qaeda in the Arabian Peninsula, apparently trained AbdulMutallab, “equipped him with … explosives and directed him to attack that plane headed for America,” Obama said.

“This is not the first time this group has targeted us,” Obama said. “They have bombed Yemeni government facilities and Western hotels, restaurants and embassies, including our embassy in 2008.

“I’ve made it a priority to strengthen our partnership with the Yemeni government — training and equipping their security forces, sharing intelligence and working with them to strike al Qaeda terrorists,” he said.

British Prime Minister Gordon Brown called Friday for an international meeting later this month to discuss how to counter radicalization in Yemen.

Obama promised that “all those involved in the attempted act of terrorism on X-Mas must know you, too, will be held to account,” Obama said.

“Our nation is at war against a far-reaching network of violence and hatred, and … we will do whatever it takes to defeat them and defend our country.”

AbdulMutallab had a valid, two-year, multiple-entry visa into the United States, despite the fact that his father had twice spoken to at least one representative of the CIA at the U.S. Embassy in Nigeria about his son’s increasingly extremist views.

(Source: CNN)