Afghan and NATO-led troops killed a regional Taliban commander and his associate in southern Afghanistan, and an explosion claimed the life a British soldier in a separate incident, officials said Thursday. The joint NATO-Afghan forces killed commander Mullah Abdul Matin and Mullah Karim Agha in the southern province of Helmand on Monday, the alliance said in a statement. "As a result of this successful attack, the Taliban's networks have suffered another severe setback," said Brig. Gen. Carlos Branco, a spokesman for NATO's International Security Assistance Force.