This report analyzes incidents recorded in The RAND Corporation’s chronology of international terrorism for 1982 and 1983. The chronology contains data on international terrorist incidents since 1968, derived from newspapers, journals, and the foreign press. It provides a comprehensive database with which trends in various aspects of terrorism can be analyzed. In 1982 and 1983, government authorities in several countries scored impressive successes against international terrorist groups, yet the total volume of terrorist activity worldwide has increased during the last two years. In the period under review, the authors find that large-scale, indiscriminate attacks have become more common. They conclude that terrorism remains a worldwide problem that shows no sign of abating, and every sign of becoming less discriminate and more bloody.