Gregory M. Reichberg is research professor at the Peace Research Institute Oslo. He has held appointments in political science at the University of Oslo, as well as in philosophy at the Catholic University of America and Fordham University. He is author of Thomas Aquinas on War and Peace (Cambridge University Press, 2017), and numerous articles on war, peace and ethics.
<div style="margin-bottom: 10px; padding-bottom: 10px; border-bottom: 1px dotted #ccc;" class="full_width_image"><img style="width: 624px; max-width: 100%;" src="https://www.ncronline.org/files/styles/email_newsletter_full_width/publ… style="font-size: 19px; font-family: 'Georgia', serif;">
![https://www.ncronline.org/files/styles/email_newsletter_full_width/publ…](https://www.ncronline.org/files/styles/email_newsletter_full_width/public/2025-06/20250625T1757-TRUMP-NATO-SUMMIT-1800188%20resize.jpg"></div><div><hr><p> </p></div><div){kind=link}
<div style="text-align: center;"><div style="margin-bottom: 10px; padding-bottom: 10px; border-bottom: 1px dotted #ccc;" class="full_width_image"><img style="width: 624px; max-width: 100%;" src="https://www.ncronline.org/files/styles/email_newsletter_full_width/publ… style="color: #04619d; text-decoration: none;" href=&quo
![https://www.ncronline.org/files/styles/email_newsletter_full_width/publ…](https://www.ncronline.org/files/styles/email_newsletter_full_width/public/2025-06/20250625T0900-POPE-AUDIENCE-HEALING-1800087%20resize.jpg"/></div></div><h2><a){kind=link}
Secondary 550 Ad
<h2><a style="color: #04619d; text-decoration: none;" href="https://www.ncronline.org/opinion/ncr-voices/shining-light-trumps-un-am… a light on Trump's un-American activities</a></h2><div style="font-weight: bold; font-size: 15px; font-family: Arial, sans-serif;" class="byline">by Michael Sean Winters</div><div style="font-size: 19px; font-family: 'Georgia', serif;"><p>
<div style="text-align: center;"><div style="margin-bottom: 10px; padding-bottom: 10px; border-bottom: 1px dotted #ccc;" class="full_width_image"><img style="width: 624px; max-width: 100%;" src="https://www.ncronline.org/files/styles/email_newsletter_full_width/publ… style="color: #04619d; text-decoration: none;" href=&
![https://www.ncronline.org/files/styles/email_newsletter_full_width/publ…](https://www.ncronline.org/files/styles/email_newsletter_full_width/public/2025-06/20250626T2035-BISHOPS-OPPOSE-BIG-BEAUTIFUL-BILL-1792816.JPG"/></div></div><h2><a){kind=link}
<h2><a style="color: #04619d; text-decoration: none;" href="https://www.ncronline.org/opinion/who-are-8-new-us-archbishops-receivin… are the 8 new US archbishops receiving the pallium on Sunday?</a></h2><div style="font-weight: bold; font-size: 15px; font-family: Arial, sans-serif;" class="byline">by Michael Sean Winters</div><div style="font-size: 19px; font-family: 'Georgia', serif;">