Warplanes and helicopter gunships pounded suspected militant positions in Pakistan's troubled northwest on Sunday, killing 11 Taliban fighters, intelligence officials said. Elsewhere in the region, two government soldiers were killed and four were wounded when insurgents attacked a pair of military outposts near Wana in South Waziristan shortly after morning prayers with rockets, missiles and small arms fire, two intelligence officials said. The military confirmed that two bases had been attacked, but could not immediately comment on casualties. Violence has spiked in recent weeks in South Waziristan, a rugged tribal area along Pakistan's border with Afghanistan, as the government prepares for an apparent offensive there aimed at eliminating Pakistani Taliban leader Baitullah Mehsud.