| Call number | Item |
| U | Military Science (Go to start of category) |
| U21 .A4 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) The Causes and Cure of Armaments and War (London: P. S. King and Co., 1914), by Albert William Alderson (multiple formats at archive.org) |
| U21 .M22 | Some Neglected Aspects of War; Together With The Power That Makes for Peace, and The Capture of Private Property at Sea (Boston: Little, Brown, and Co., 1907), by A. T. Mahan, contrib. by Henry S. Pritchett and Julian Stafford Corbett |
| U21 .N5 1918 | The Biology of War (New York: The Century Co., 1918), by Georg Friedrich Nicolai, trans. by Constance A. Grande and Julian Grande |
| U21 .T3 | The God of War (New York et al.: F. H. Revell Co., c1920), by J. J. Taylor (page images at HathiTrust) |
| U21 .T654 | Letters on War (Maldon, Essex: Free Age Press, 1900), by Leo Tolstoy (bound with other pamphlets: multiple formats at archive.org) |
| U21 .Y6 | Military Morale of Nations and Races (Kansas City, MO: Franklin Hudson Pub. Co., 1912), by Charles Young (page images at HathiTrust) |
| U21.2 | Violent Conflict in the 21st Century: Causes, Instruments, and Mitigation (1999), ed. by Charles F. Hermann, Harold K. Jacobson, and Anne Simon Moffat (PDF at amacad.org) |
| U21.2 .A74 | In Athena's Camp: Preparing for Conflict in the Information Age (1997), ed. by John Arquilla and David Ronfeldt (PDF files at rand.org) |
| U21.2 .B3973 2004 | The Behavioral Origins of War (Ann Arbor: University of Michigan Press, c2004), by D. Scott Bennett and Allan C. Stam (page images at HathiTrust) |
| U21.2 .C645 1992 | Conflict, Culture, and History: Regional Dimensions (Maxwell AFB, AL: Air University Press, 1992), by Stephen Blank, Lawrence E. Grinter, K. P. Magyar, Lewis B. Ware, and Bynum E. Weathers (PDF at Air University Press) |
| U21.2 .G53 1996 | Global Security Concerns: Anticipating the Twenty-First Century (MAxwell AFB, AL: Air University Press, 1996), ed. by K. P. Magyar (PDF with commentary at Air University Press) |
| U21.2 .H35 2000 | Handbook of War Studies II (Ann Arbor: University of Michigan Press, c2000), ed. by Manus I. Midlarsky (page images at HathiTrust) |
| U21.2 .L37 2001 | War Stories (2001), by Bruce D. Larkin (PDF at Wayback Machine) |
| U21.2 .M48 2000 | Armed Conflict in the 21st Century: The Information Revolution and Post-Modern Warfare (2000), by Steven Metz (PDF with commentary at armywarcollege.edu) |
| U21.2 .M483 2003 | Future War, Future Battlespace: The Strategic Role of American Landpower (2003), by Steven Metz and Raymond A. Millen |
| U21.2 .S4 2004 | The Scourge of War: New Extensions on an Old Problem (Ann Arbor: University of Michigan Press, 2004), ed. by Paul F. Diehl (page images at HathiTrust) |
| U21.2 .W374 2001 | War in a Changing World (Ann Arbor: University of Michigan Press; Tel Aviv: Jaffee Center for Strategic Studies, c2001), ed. by Zeev Maoz and Azar Gat (page images at HathiTrust) |
| U21.5 .M3 | Militarism versus Feminism: An Enquiry and a Policy Demonstrating that Militarism involves the Subjection of Women (London: Allen and Unwin, 1915), by C. K. Ogden and Mary Sargant Florence (HTML at Celebration of Women Writers) |
| U22 .L34 2014 | The Ethics of Armed Conflict: A Cosmopolitan Just War Theory (Edinburgh: Edinburgh University Press, c2014), by John W. Lango |
| U22 .L36 2001 | The Leader's Imperative: Ethics, Integrity, and Responsibility (West Lafayette, IN: Purdue University, c1980), ed. by J. Carl Ficarrotta (PDF at Purdue) |
| U22.3 .F75 | War Within Man: A Psychological Enquiry into the Roots of Destructiveness (c1963), by Erich Fromm, contrib. by Jerome D. Frank, Paul Tillich, Hans J. Morgenthau, Roy W. Menninger, Pitirim Aleksandrovich Sorokin, and Thomas Merton (page images at HathiTrust) |
| U23 .F53 2001 | Challenges of the Global Century: Report of the Project on Globalization and National Security (2001), by Stephen J. Flanagan, Ellen L. Frost, and Richard L. Kugler (page images at Google) |
| U24 .D81 | A Military Dictionary (Philadelphia: W. Duane, 1810), by William Duane |
| U24 .S43 1968 | Military Dictionary (1861), by H. L. Scott (page images at MOA) |
| U25 .M22 | French-English Dictionary of Machine Gun Terms (Menasha, WI: G. Banta Pub. Co., c1918), by Harry James Malony, Frank Short, and H. Morton |