The Just War Theory Described in Living Justice by Thomas Massaro

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The just war theory is described by Thomas Massaro in his book Living Justice as the “principle that warfare might be justified under certain conditions” (108). The complexities involved with international relations makes determining a just war very difficult. Even though historically pacifism hasn’t gained much traction within Catholic circles, it currently is gaining popularity with many mainstream Catholics. With so many differing views on military action, one might ask, “What determines a just war? How can we balance the need for peace with self-defense?” An examination of criteria for a just war and critiques written on this topic might shed light on these two questions.
Even though many credit St. Augustine with founding the just war theory, this view is partially misleading. Augustine synthesized ideas from classical Greco-Roman and Christian philosophy to construct his theory, so credit can also be given to philosophers like Aristotle and Cicero. Since then, it has been modified by many notable thinkers such as St. Thomas Aquinas, Hugo Grotius, and Francisco Suarez (Orend). Technicalities aside, Augustine was a pivotal figure in developing our contemporary understanding of this tradition (Massaro 70).
The just war theory can be broken down into three components: jus ad bellum, jus en bello, and jus post bellum. Translated from Latin, these mean “justice before war, justice in war, and justice after war.” In this way, the Catholic Church is able to reconcile Jesus’s lofty teachings about loving your neighbor and causing no harm with protecting the innocent (Massaro 104).
Jus ad bellum is mainly addressed towards people in power, since it is up to them to declare war (Orend). Leaders must use every method at their disp...

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...ts in our Constitution. However, these actions must only be taken only in extreme need and as a last resort, when all other methods have failed.

Works Cited

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Kingsbury, Kathleen. "The Value of a Human Life: $129,000." Time. Time Inc., 20 May 2008. Web. 19 Apr. 2014.
Klejment, Anne, and Nancy L. Roberts. American Catholic Pacifism: The Influence of Dorothy Day and the Catholic Worker Movement. Westport CT: Praeger, 1996. 74-80. Print.
"Life and Dignity of the Human Person." United States Conference of Catholic Bishops. Web. 19 Apr. 2014.
Massaro, Thomas, S.J. Living Justice: Catholic Social Teaching in Action. Plymouth, UK: Rowman & Littlefield, 2012. 70+. Print.
Orend, Brian. "War." Stanford Encyclopedia of Philosophy. Stanford University, 28 July 2005. Web. 19 Apr. 2014.

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