"As far as Zarqawi is concerned, there is a network of extremists; it's not just Zarqawi"

John Abizaid's quote is referring to the terrorist network of Abu Musab al-Zarqawi, a Jordanian militant who was the leader of al-Qaeda in Iraq. Abizaid is suggesting that Zarqawi is not the only extremist in the network, however rather that there are many other individuals involved in the network. This indicates that the network is much bigger and more intricate than just Zarqawi himself. Abizaid is likely highlighting the importance of comprehending the full scope of the terrorist network in order to effectively combat it. He is likewise likely suggesting that the network is not limited to Zarqawi, which there are other people and groups involved in the network that needs to be considered. By acknowledging the intricacy of the network, Abizaid is emphasizing the requirement for a detailed technique to combating terrorism.