PESHAWAR (Agencies) Militants carried out a series of attacks against soldiers in tribal region along the Afghan border Sunday, killing two troops and wounding more than a dozen others, intelligence officials said. The attacks took place in the North and South Waziristan tribal areas, both of which are strongholds for Pakistani Taliban fighters who have waged a deadly war against the government. A group of militants attacked an army checkpoint early Sunday in the town of Ladha in South Waziristan, killing one soldier and wounding another, said intelligence officials, speaking on condition of anonymity because they were not authorized to talk to the media. In a retaliatory attack, the troops killed two militants. A second soldier was killed when troops engaged militants in a gunbattle in the Pasht Ziarat area on the border of North and South Waziristan, the officials said. Three militants were killed during the fight.