Mullah Akhtar Muhammad Mansur

After an unprecedented 11 months of silence, Ayman al-Zawahri, the emir of al-Qaida, this week issued a video message proclaiming his loyalty to the new head of the Afghan Taliban, Mullah Akhtar Mansoor. The almost 10-minute long message dramatically reaffirms the alliance between al-Qaida and the Taliban, a setback for efforts to bring the Taliban into a political process.