This edited book covers all aspects of grain legumes including negative impact of abiotic and biotic stresses under the changing global climate. It discusses the role of various subject disciplines ranging from plant breeding, genetics, plant physiology, molecular biology, and genomics to high-throughput phenotyping and other emerging technologies for sustaining global grain and fodder legume production to alleviate impending global food crises. The book offers strategies to ensure plant-based dietary protein security across the globe. It covers all major commercial legume crops used as food, feed and fodder. This book is targeted to graduate and postgraduate students, researchers, progressive farmers and policymakers to inform them of the importance of cultivating grain and fodder legumes for future global food and nutritional security and for maintaining sustainable ecosystem.