See this legally free ebook:

  • Armed with the Faith: A Catholic Handbook, Catholic Information Service edition, edited by Reverend Daniel R. Sweeney, S.J.  (New Haven, CT: Knights of Columbus Supreme Council, Catholic Information Service, 2009). With Imprimatur. [N.B., This new edition of the Military Catholic Handbook contains various prayers and devotions, including those specific to soldiers, a manual on confession, and catechetical instructions.]. Available in PDF format on this page of the Knights of Columbus.

On the Feast of St. Demetrius of Thessalonica in the Maronite Catholic church and in the Latin church (calendar of the Roman Rite in Greece).