ABSTRACT This study tested the hypothesis that group practice of the of Transcendental Meditation (TM)1 and TM-Sidhi1 programs by approximately the square root of 1% of the world's population globally reduces terrorism and international cont1ict. For 3 periods during 1983-1985, ranging conflict. during place from 8 to 11 days, practitioners of these programs assembled in one place to practice in a group. Data on the numbers of casualties and fatalities due to terrorism were obtained from the Rand Corporation and grouped as five-day aggregates, forming a single time series spanning the 3 assemblies. Data on international conflict were generated from date-blind ratings of news events conflict were in the New York Times and London Times to give comparable blocks for time and London Time series analysis before, during, and after each of the assemblies.