High Quality Content by WIKIPEDIA articles! Targeted Killing in International Law is a book about the legality of targeted killing, written by Nils Melzer. It was first published by Oxford University Press in May 2008. The book delves into the history surrounding use of targeted killing as a government strategy by multiple countries including the United States, the United Kingdom, Israel, Switzerland, and Germany; both for military and law enforcement purposes. Melzer argues that directly after the September 11 attacks in the United States, perceptions regarding the use of the tactic of targeted killing shifted to become more supportive.