astronomy

Thomas Crosbie (sociologist)

Thomas Crosbie (sociologist) is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Thomas Crosbie (sociologist) rather than just read about it. In short: Thomas Crosbie is a Canadian sociologist who studies military sociology, civil-military relations, military politics, and Professional Military Education (PME). Crosbie is an Associate Professor of Military Operations at the Center for Joint Operations in the Department of Military Operations at the Royal Danish Defence College.

Key takeaways

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Reference excerpt

Thomas Crosbie is a Canadian sociologist who studies military sociology, civil-military relations, military politics, and Professional Military Education (PME). Crosbie is an Associate Professor of Military Operations at the Center for Joint Operations in the Department of Military Operations at the Royal Danish Defence College.

Background Thomas Crosbie earned his B.A. in English at Memorial University of Newfoundland in Canada, his M.A. in Literary Studies at La Trobe University in Australia, and his M.A., M.Phil., and Ph.D. in Sociology at Yale University in New Haven, Connecticut. While at Yale, he was a Junior Fellow at the Center for Cultural Sociology and at the Center for Comparative Research, and he taught classes on the Sociology of Crime and Deviance and on state-building in the Middle East.

Career Crosbie began his career at the University of Maryland, College Park, in 2014, before moving to the Royal Danish Defense College in 2017. Crosbie was hired as an Assistant Professor of Military Operations and Military Studies before being promoted to an associate professor in 2019. During his time at the Royal Danish Defense College, he served as the Course Director for Joint Warfare on the Military-Strategic and Operational Level; an editorial board member for the journals Armed Forces & Society and the Scandinavian Journal of Military Studies; the Chief Editor of the Scandinavian Journal of Military Studies, and the Editor of the Military Politics book series with Berghahn Books. Additionally, he is a council member of the Inter-University Seminar on Armed Forces and Society (IUS). Crosbie has also appeared on Denmark’s TV 2, The New York Times, and the Navy Times.

Research and work Crosbie’s research focuses on a broad range of topics, including civil-military relations, military politics, media-military relations, and Professional Military Education (PME). His work on military politics explores the use of the military in domestic politics, senior military officers’ roles in democracies, and the role of private military contractors in conflict regions. Speaking to Denmark’s TV 2, Crosbie discussed the ramifications for U.S. generals who might not want to involve themselves in domestic politics. Additionally, he advised a New York Times Magazine article on U.S. Military Contractors left behind or killed in Kuwait. Crosbie’s scholarship on media-military relations highlights how the military has dealt with integrating the media’s considerations into its operations. His book, The Political Army: How the U.S. Military Learned to Manage the Media and Public Opinion, examines the U.S. Army’s deepening involvement with media opinion and engagement over the last 60 years. Finally, his research on Professional Military Education (PME) has focused on officer education in NATO countries. His article, "NATO Professional Military Education at 75: Rethinking the Competency-Development Process", co-authored with Simon Smith and Holger Lindhardtsen, looks at the way NATO and its member nations can ensure that their military officers are properly prepared for future wars.

Media Appearances Crosbie had made numerous media appearances on outlets like Time Magazine, The New York Times, Fortune, PBS, and the Danish news outlet Berlingske. Throughout these appearances, he's spoken on President Trump's rhetoric towards Greenland, the implications a possible escalation could have had, and how civil-military norms may be changing under President Trump.

Notable publications Crosbie, Thomas (2023). Military Politics: New Perspectives. Berghahn Books. ISBN 978-1-80539-023-7. Crosbie, Thomas (11 March 2025). The Political Army: How the U.S. Military Learned to Manage the Media and Public Opinion. Columbia University Press. ISBN 978-0-231-56289-8. Smith, Simon J.; Crosbie, Thomas; Lindhardtsen, Holger (3 July 2025). "NATO professional military education at 75: rethinking the competency-development process". Defence Studies. 25 (3): 740–748. doi:10.1080/14702436.2025.2474066. ISSN 1470-2436. Coletta, Damon; Crosbie, Thomas (2022). "Janowitz and Huntington—Better Together: A Response". Armed Forces & Society. 48 (3): 723–729. doi:10.1177/0095327X20988556. ISSN 0095-327X. Coletta, Damon; Crosbie, Thomas (2021). "The Virtues of Military Politics". Armed Forces & Society. 47 (1): 3–24. doi:10.1177/0095327X19871605. ISSN 0095-327X. Crosbie, Thomas (2021). "Clausewitz and Military Politics: Theoretical Reflections on a Strong Program Approach to War and the Military". Militarization and the Global Rise of Paramilitary Culture. Singapore: Springer Singapore. doi:10.1007/978-981-16-5588-3_2. ISBN 978-981-16-5587-6. Crosbie, Thomas; Kleykamp, Meredith (2020). "Civilian Military Experts: Findings from the 2017 Survey of American Military Experts". Rethinking Military Professionalism for the Changing Armed Forces. Cham: Springer International Publishing. doi:10.1007/978-3-030-45570-5_9. ISBN 978-3-030-45569-9. Swed, Ori; Kwon, Jae; Feldscher, Bryan; Crosbie, Thomas (2020). "The Corporate War Dead: New Perspectives on the Demographics of American and British Contractors". Armed Forces & Society. 46 (1): 3–24. doi:10.1177/0095327X18811375. ISSN 0095-327X.

References

Worked examples

Example 1 — a first encounter with Thomas Crosbie (sociologist)

Start with the simplest possible case. Write down what Thomas Crosbie (sociologist) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Thomas Crosbie (sociologist) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Thomas Crosbie (sociologist) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Thomas Crosbie (sociologist)

In research: Thomas Crosbie (sociologist) appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Thomas Crosbie (sociologist) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Thomas Crosbie (sociologist) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Canadian sociologists, La Trobe University alumni, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Thomas Crosbie (sociologist) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Thomas Crosbie (sociologist) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Thomas Crosbie (sociologist) means in your own words.
Compare your version with the excerpt and mark what you missed.
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Frequently asked questions

What is Thomas Crosbie (sociologist) in simple terms?

Why does Thomas Crosbie (sociologist) matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Thomas Crosbie (sociologist)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Thomas Crosbie (sociologist).