Modeled after his successful Cases in International Relations, now in its seventh edition, revered author and scholar, Don Snow, presents an engaging and novel approach to national security. A series of brief case studies representing current and controversial policy problems facilitates deliberation and debate about competing policy ideas, and encourages undergraduate students to think critically about issues of national security. Cases include new strategies for containing the terrorist threat, implications of President Trump’s withdrawal from the Iran Nuclear Agreement, and the increasingly adversarial relations with Russia, focusing on Russian expansionism in its geographical domain and interference in the 2016 American presidential election as national security problems for America.