Dueck explores the past, present, and future of Republican foreign policy nationalism. The rise of a populist conservative nationalism in the United States has triggered unease at home and abroad. Riding the populist wave, Donald Trump achieved the presidency advocating a hardline nationalist approach. Yet critics frequently misunderstand the Trump administration's foreign policy, along with American nationalism. In Age of Iron, leading authority on Republican foreign policy Colin Dueck demonstrates that conservative nationalism is the oldest democratic tradition in US foreign relations. Designed to preserve self-government, conservative nationalism can be compatible with engagement overseas. But 21st century diplomatic, economic, and military frustrations led to the resurgence of a version that emphasizes US material interests. No longer should the US allow its allies to free-ride, and nor should it surrender its sovereignty to global governance institutions. Because this return is based upon forces larger than Trump, it is unlikely to disappear when he leaves office. Age of Iron describes the shifting coalitions over the past century among foreign policy factions within the Republican Party, and shows how Trump upended them starting in 2015-16. Dueck offers a balanced summary and assessment of President Trump's foreign policy approach, analyzing its strengths and weaknesses. He also describes the current interaction of conservative public opinion and presidential foreign policy leadership in the broader context of political populism. Finally, he makes the case for a forward-leaning realism, based upon the understanding that the US is entering a protracted period of geopolitical competition with other major powers. The result is a book that captures the past, present, and, possibly, future of conservative foreign policy nationalism in the US.

By mid-2015, the Obama presidency will be entering its final stages, and the race among the successors in both parties will be well underway. And while experts have already formed a provisional understanding of the Obama administration's foreign policy goals, the shape of the "Obama Doctrine" is finally coming into full view. It has been consistently cautious since Obama was inaugurated in 2009, but recent events in the Middle East, Eastern Europe, and the Far East have led an increasingly large number of foreign policy experts to conclude that caution has transformed into weakness. In The Obama Doctrine, Colin Dueck analyzes and explains what the Obama Doctrine in foreign policy actually is, and maps out the competing visions on offer from the Republican Party. Dueck, a leading scholar of US foreign policy, contends it is now becoming clear that Obama's policy of international retrenchment is in large part a function of his emphasis on achieving domestic policy goals. There have been some successes in the approach, but there have also been costs. For instance, much of the world no longer trusts the US to exert its will in international politics, and America's adversaries overseas have asserted themselves with increasing frequency. The Republican Party will target these perceived weaknesses in the 2016 presidential campaign and develop competing counter-doctrines in the process. Dueck explains that within the Republican Party, there are two basic impulses vying with each other: neo-isolationism and forceful internationalism. Dueck subdivides each impulse into the specific agenda of the various factions within the party: Tea Party nationalism, neoconservatism, conservative internationalism, and neo-isolationism. He favors a realistic but forceful US internationalism, and sees the willingness to disengage from the world by some elements of the party as dangerous. After dissecting the various strands, he articulates an agenda of forward-leaning American realism-that is, a policy in which the US engages with the world and is willing to use threats of force for realist ends. The Obama Doctrine not only provides a sharp appraisal of foreign policy in the Obama era; it lays out an alternative approach to marshaling American power that will help shape the foreign policy debate in the run-up to the 2016 elections.

"In Reluctant Crusaders," Colin Dueck examines patterns of change and continuity in American foreign policy strategy by looking at four major turning points: the periods following World War I, World War II, the Cold War, and the 9/11 terrorist attacks. He shows how American cultural assumptions regarding liberal foreign policy goals, together with international pressures, have acted to push and pull U.S. policy in competing directions over time. The result is a book that combines an appreciation for the role of both power and culture in international affairs.

The centerpiece of Dueck's book is his discussion of America's "grand strategy"--the identification and promotion of national goals overseas in the face of limited resources and potential resistance. One of the common criticisms of the Bush administration's grand strategy is that it has turned its back on a long-standing tradition of liberal internationalism in foreign affairs. But Dueck argues that these criticisms misinterpret America's liberal internationalist tradition. In reality, Bush's grand strategy since 9/11 has been heavily influenced by traditional American foreign policy assumptions.

While liberal internationalists argue that the United States should promote an international system characterized by democratic governments and open markets, Dueck contends, these same internationalists tend to define American interests in broad, expansive, and idealistic terms, without always admitting the necessary costs and risks of such a grand vision. The outcome is often sweeping goals, pursued by disproportionately limited means.

The rise of a populist conservative nationalism in the United States has triggered unease at home and abroad. Riding the populist wave, Donald Trump achieved the presidency advocating a hardline nationalist approach. Yet critics frequently misunderstand the Trump administration's foreign policy, along with American nationalism. In Age of Iron, leading authority on Republican foreign policy Colin Dueck demonstrates that conservative nationalism is the oldest democratic tradition in US foreign relations. Designed to preserve self-government, conservative nationalism can be compatible with engagement overseas. But 21st century diplomatic, economic, and military frustrations led to the resurgence of a version that emphasizes US material interests. No longer should the US allow its allies to free-ride, and nor should it surrender its sovereignty to global governance institutions. Because this return is based upon forces larger than Trump, it is unlikely to disappear when he leaves office. Age of Iron describes the shifting coalitions over the past century among foreign policy factions within the Republican Party, and shows how Trump upended them starting in 2015-16. Dueck offers a balanced summary and assessment of President Trump's foreign policy approach, analyzing its strengths and weaknesses. He also describes the current interaction of conservative public opinion and presidential foreign policy leadership in the broader context of political populism. Finally, he makes the case for a forward-leaning realism, based upon the understanding that the US is entering a protracted period of geopolitical competition with other major powers. The result is a book that captures the past, present, and, possibly, future of conservative foreign policy nationalism in the US.

By mid-2015, the Obama presidency will be entering its final stages, and the race among the successors in both parties will be well underway. And while experts have already formed a provisional understanding of the Obama administration's foreign policy goals, the shape of the 'Obama Doctrine' is finally coming into full view. It has been consistently cautious since Obama was inaugurated in 2009, but recent events in the Middle East, Eastern Europe, and the Far East have led an increasingly large number of foreign policy experts to conclude that caution has transformed into weakness. In The Obama Doctrine, Colin Dueck analyzes and explains what the Obama Doctrine in foreign policy actually is, and maps out the competing visions on offer from the Republican Party. Dueck, a leading scholar of U.S. foreign policy, contends it is now becoming clear that Obama's policy of international retrenchment is in large part a function of his emphasis on achieving domestic policy goals. There have been some successes in the approach, but there have also been costs. For instance, much of the world no longer trusts the US to exert its will in international politics, and America's adversaries overseas have asserted themselves with increasing frequency. The Republican Party will target these perceived weaknesses in the 2016 presidential campaign and develop competing counter-doctrines in the process. Dueck explains that within the Republican Party, there are two basic impulses vying with each other: neo-isolationism and forceful internationalism. Dueck subdivides each impulse into the specific agenda of the various factions within the party: Tea Party nationalism, neoconservatism, conservative internationalism, and neo-isolationism. He favors a realistic but forceful US internationalism, and sees the willingness to disengage from the world by some elements of the party as dangerous. After dissecting the various strands, he articulates an agenda of forward-leaning American realism-that is, a policy in which the US engages with the world and is willing to use threats of force for realist ends. The Obama Doctrine not only provides a sharp appraisal of foreign policy in the Obama era; it lays out an alternative approach to marshaling American power that will help shape the foreign policy debate in the run-up to the 2016 elections.

"Hard Line" traces the history of Republican Party foreign policy since World War II by focusing on the conservative leaders who shaped it. Colin Dueck closely examines the political careers and foreign-policy legacies of Robert Taft, Dwight Eisenhower, Barry Goldwater, Richard Nixon, Henry Kissinger, Ronald Reagan, George H. W. Bush, and George W. Bush. He shows how Republicans shifted away from isolationism in the years leading up to World War II and oscillated between realism and idealism during and after the cold war. Yet despite these changes, Dueck argues, conservative foreign policy has been characterized by a hawkish and intense American nationalism, and presidential leadership has been the driving force behind it.

What does the future hold for Republican foreign policy? "Hard Line" demonstrates that the answer depends on who becomes the next Republican president. Dueck challenges the popular notion that Republican foreign policy today is beholden to economic interests or neoconservative intellectuals. He shows how Republican presidents have been granted remarkably wide leeway to define their party's foreign policy in the past, and how the future of conservative foreign policy will depend on whether the next Republican president exercises the prudence, pragmatism, and care needed to implement hawkish foreign policies skillfully and successfully. "Hard Line" reveals how most Republican presidents since World War II have done just that, and how their accomplishments can help guide future conservative presidents.