The arrest of the Chilean general Augusto Pinochet Ugarte in London in 1998, and decisions in UK, Spanish, Belgian, and other European courts supporting his extradition, opened new hope that prosecutions of international crimes in national courts under universal jurisdiction laws might prove a viable strategy for combating impunity. Complainants brought cases in a number of European countries, most notably Spain and Belgium. In Spain, the Supreme Court eventually cut back on the reach of the universal jurisdiction law by superimposing the requirement of a nationality tie to the forum, as well as modifying other prior jurisprudence. In Belgium, the courts grappled with issues of immunity and the ability to initiate proceedings in the absence of the defendant. Under US pressure the Belgian legislature eventually narrowed and weakened the law. The article traces these developments, and concludes that advocates need to be more strategic in choosing both the number and type of cases they present under theories of extraterritorial jurisdiction. The primary criterion, the author argues, should be the potential for the extraterritorial case to catalyze anti-impunity efforts in the territorial state.