E. H. Carr published 'The Twenty Year's Crisis' in 1939. This seminal text is a cornerstone of classical realism in international relations. Carr critically analyzed the failure of utopian or idealist approaches during the interwar period, arguing that international politics is fundamentally driven by power dynamics rather than abstract moral principles or legalistic frameworks.

Hans J. Morgenthau authored 'Politics Among Nations: The Struggle for Power and Peace', first published in 1948. This work is considered a foundational text in the realist school of international relations, emphasizing the concept of power politics and the national interest as the primary drivers of state behavior in the global arena.

Robert H. Jackson is the author of 'The Global Covenant: Human Conduct in a World of States', published in 2002. The book explores the ethical and political dimensions of international relations, specifically focusing on the role of the state and the norms that govern global interactions. It is a significant contribution to the study of international political theory and the concept of sovereignty.

Morton Kaplan is a prominent figure in international relations theory, particularly known for his systems theory approach. He extensively analyzed the concept of equilibrium in the context of balance of power systems, exploring how international systems maintain stability through specific rules and mechanisms that prevent any single state from achieving total hegemony.

This question requires matching authors with their corresponding books. The correct matches are: E. H. Carr with 'The Twenty Year Crisis', R. Keohane with 'From Wealth to Power', J. Mearsheimer with 'The Tragedy of Great Power Politics', and F. Zakaria with 'The Post-American World'. These works are foundational in the study of international relations and global political power dynamics.

E.H. Carr published 'The Twenty Years' Crisis' in 1939. This seminal text is a cornerstone of classical realism in international relations. Carr critiques the 'utopian' idealism of the interwar period, arguing that international politics is fundamentally driven by power dynamics rather than abstract moral principles or legalistic frameworks.

Arnold Wolfers was a prominent realist scholar who emphasized the importance of power and national interest in international relations. Unlike some of his contemporaries who sought to integrate moral or idealistic frameworks into political analysis, Wolfers focused on the structural constraints of the international system and the necessity of power-based statecraft, often distancing his work from purely idealistic interpretations.

Morgenthau's realist theory emphasizes power politics, often neglecting the role of diplomacy and statesmanship in international relations. His focus on power as the primary driver of state behavior clashes with the nuanced approaches of diplomacy and statesmanship, which seek to manage and resolve conflicts through negotiation and cooperation, creating a tension between his power-centric realism and the art of statecraft.

Game theory is a mathematical framework used to model strategic decision-making where the outcome for each participant depends on the actions of others. In international relations, models like the Prisoner's Dilemma illustrate the difficulty of achieving cooperation in an anarchic system, while the Game of Chicken models high-stakes brinkmanship, such as nuclear standoffs, where neither side wants to back down first.

Classical realism, and later structural realism, emphasizes that the international system is anarchic because there is no world government to enforce order. This anarchy forces states to rely on self-help, leading to the security dilemma where one state's efforts to increase its security are perceived as a threat by others, resulting in arms races and instability.