Abu Mus'ab al-Suri remains the foremost theoretician in the global jihadist movement today, despite his capture in Pakistan in late 2005. After having participated in the founding of Al-Qaeda in Afghanistan in 1988, al-Suri, whose real name is Mustafa Sethmarian Nasar, trained a whole generation of young jihadis at his camps in Afghanistan. When he moved back to Spain in the early 1990s, al-Suri took part in establishing Al-Qaeda networks in Europe. In the mid-1990s, he rose to prominence in jihadi circles as editor of the London-based bulletin of the Algerian Groupe Islamique Armee, the most deadly Islamist terrorist group operating in Europe at the time. Al-Suri later formed his own media centre and training camp in Taleban-ruled Afghanistan, to which he returned in 1998. Building on his extensive military experience from the Syrian Islamist insurgency in the early 1980s, he contributed decisively to formulating Al-Qaeda's global warfare strategy. Throughout his writings thereis a desire to learn from past mistakes and rectify the course of the jihadi movement. His 1, 600 page work, 'The Global Islamic Resistance Call', outlines a broad strategy for the coming generation of Al-Qaeda, with a keen eye for the practical implementation of jihadi guerrilla warfare theories.