THE NEW YORK TIMES BESTSELLER 'When one of the world's leading scholars of civil war tells us that a country is on the brink of violent conflict, we should pay attention. This is an important book' Steven Levitsky and Daniel Ziblatt, authors of How Democracies Die Civil wars are the biggest danger to world peace today - this book shows us why they happen, and how to avoid them. We are now living in the world's greatest era of civil wars. While violence has declined worldwide, major civil wars are now being fought in countries including Iraq, Syria and Libya, and smaller civil wars are being fought in India and Malaysia. Even countries we thought could never experience another civil war - such as the USA, Sweden and Ireland - are showing signs of unrest. So how can we stop them? In How Civil Wars Start, acclaimed expert Professor Barbara F. Walter, who has advised on political violence everywhere from the CIA to the U.S. Senate to the United Nations, explains the rise of civil wars and the conditions that create them - not least when countries are not quite democratic. As democracies across the world backslide and citizens become more polarised, civil wars will become even more widespread and last longer than they have in the past - but this urgent and important book shows us a path back toward peace.

The protection of groundwater resources has emerged in recent years as a high priority topic on the agenda of many countries. In responding to the growing concern over deteriorating groundwater quality, many countries are developing a comprehensive regulatory framework for the management of subsurface water resources with management referring to both quantity and quality aspects. Within this framework, groundwater models are rapidly coming to playa central role in the development of protection and rehabilitation strategies. These models provide forecasts of the future state of the groundwater aquifer systems and/or the unsaturated zone in response to proposed management initiatives. For example, models will predict the effects of implementing a proposed management scheme on water levels and on the transport and fate of pollutants. The models are now used in the formulation of policies and regulations, the issuing of permits, design of monitoring and data collection systems, and the development of enforcement actions. The growth in the use of these sophisticated tools has led to many unforeseen problems in groundwater management. Lingering issues include reliability of codes, quality assurance in model development and applications, efficient utiliza tion of human and material resources, technology transfer and training. Some issues have legal ramifications, as in cases where the applications of models have been contested in courts."

In the thirty years since the invention of the CO2 gas laser, the major design issue has shifted from how to obtain the desired power level to how to achieve reliable operation. At the same time, the opening of many laser development facilities in the Former Soviet Union has allowed their achievements and design approaches to be understood and appreciated for the first time. Further, the industrial laser user community has identified a number of emerging applications at higher power levels (15-20 kW) than are attainable by most commercial devices. In High Power Lasers - Science and Engineering, the designers, developers and users of high-power gas laser systems discuss design approaches, methods of enhancing performance, new applications, and user requirements.

Civil wars are the biggest danger to world peace today - this book shows us why they happen, and how to avoid them. Most of us don't know it, but we are living in the world's greatest era of civil wars. While violence has declined worldwide, civil wars have increased. This is a new phenomenon. With the exception of a handful of cases - the American and English civil wars, the French Revolution - historically it has been rare for people to organise and fight their governments. This has changed. Since 1946, over 250 armed conflicts have broken out around the world, a number that continues to rise. Major civil wars are now being fought in countries including Iraq, Syria and Libya. Smaller civil wars are being fought in Ukraine, India, and Malaysia. Even countries we thought could never experience another civil war - such as the USA, Sweden and Ireland - are showing signs of unrest. In How Civil Wars Start, acclaimed expert Barbara F. Walter, who has advised on political violence everywhere from the CIA to the U.S. Senate to the United Nations, explains the rise of civil war and the conditions that create it. As democracies across the world backslide and citizens become more polarised, civil wars will become even more widespread and last longer than they have in the past. This urgent and important book shows us a path back toward peace.

In the thirty years since the invention of the CO2 gas laser, the major design issue has shifted from how to obtain the desired power level to how to achieve reliable operation. At the same time, the opening of many laser development facilities in the Former Soviet Union has allowed their achievements and design approaches to be understood and appreciated for the first time. Further, the industrial laser user community has identified a number of emerging applications at higher power levels (15-20 kW) than are attainable by most commercial devices. In High Power Lasers - Science and Engineering, the designers, developers and users of high-power gas laser systems discuss design approaches, methods of enhancing performance, new applications, and user requirements.

The protection of groundwater resources has emerged in recent years as a high priority topic on the agenda of many countries. In responding to the growing concern over deteriorating groundwater quality, many countries are developing a comprehensive regulatory framework for the management of subsurface water resources with management referring to both quantity and quality aspects. Within this framework, groundwater models are rapidly coming to playa central role in the development of protection and rehabilitation strategies. These models provide forecasts of the future state of the groundwater aquifer systems and/or the unsaturated zone in response to proposed management initiatives. For example, models will predict the effects of implementing a proposed management scheme on water levels and on the transport and fate of pollutants. The models are now used in the formulation of policies and regulations, the issuing of permits, design of monitoring and data collection systems, and the development of enforcement actions. The growth in the use of these sophisticated tools has led to many unforeseen problems in groundwater management. Lingering issues include reliability of codes, quality assurance in model development and applications, efficient utiliza tion of human and material resources, technology transfer and training. Some issues have legal ramifications, as in cases where the applications of models have been contested in courts."

EVIDENCE AND BURDEN OF PROOF UNDER THE FOREIGN SOVEREIGN IMMUNITIES ACT, 1976 is practical guide for assessing the quality of the evidence and the burden of proof in sovereign immunity trials under the FSIA 1976. The study concludes in demonstrating two distinct rules of the burden of proof, for each kind of immunity; the rules are widely uniform, and were corroborated by most US District Courts, Courts of Appeals and the United States Supreme Court. Pierre F. Walter shows in this study that solid knowledge of procedural rules and the law of evidence in sovereign immunity litigation is often the basis of winning a case. While this is generally so, it is of even more importance in the highly complex trials that involve foreign sovereign immunity. The law firm stands out that can anticipate the judge's assessment of the burden of proof situation in every phase of the trial, thereby reducing cost for the client and substantially shifting probability up for winning the case. DR. PIERRE F. WALTER, ESQ. is an international lawyer holding degrees in German and European law, and a 'Docteur en droit' in international law from the law faculty of the University of Geneva (1987). Before expanding his career into corporate training and business consultancy, he has worked as a research assistant with Freshfields, Bruckhaus, Deringer in Cologne, Germany, with Lalive Lawyers in Geneva and with Professor Louis B. Sohn, UGA Law School, Department of International Law.

Why do some civil wars end in successfully implemented peace settlements while others are fought to the finish? Numerous competing theories address this question. Yet not until now has a study combined the historical sweep, empirical richness, and conceptual rigor necessary to put them thoroughly to the test and draw lessons invaluable to students, scholars, and policymakers. Using data on every civil war fought between 1940 and 1992, Barbara Walter details the conditions that lead combatants to partake in what she defines as a three-step process--the decision on whether to initiate negotiations, to compromise, and, finally, to implement any resulting terms. Her key finding: rarely are such conflicts resolved without active third-party intervention.

Walter argues that for negotiations to succeed it is not enough for the opposing sides to resolve the underlying issues behind a civil war. Instead the combatants must clear the much higher hurdle of designing credible guarantees on the terms of agreement--something that is difficult without outside assistance. Examining conflicts from Greece to Laos, China to Columbia, Bosnia to Rwanda, Walter confirms just how crucial the prospect of third-party security guarantees and effective power-sharing pacts can be--and that adversaries do, in fact, consider such factors in deciding whether to negotiate or fight. While taking many other variables into account and acknowledging that third parties must also weigh the costs and benefits of involvement in civil war resolution, this study reveals not only how peace is possible, but probable.