"The Priestly Fraternity of St. Peter asks all of its apostolates around the world to dedicate Friday, August 1 to a day of prayer and penance for the Christians who are suffering terrible persecution in Iraq, Syria and elsewhere in the Middle East.
August 1 is the First Friday of the month and the Feast of St. Peter in Chains, which is celebrated as a Third Class Feast in FSSP houses and apostolates. It is the feast in which we read of the great power of the persevering prayer of members of the Church: “Peter therefore was kept in Prison. But prayer was made without ceasing by the Church unto God for him.” (Acts 12:5)
This feast of our Patron should be an invitation to the faithful to join us in Holy Hours and other fitting prayers to beg the Most Holy Trinity that these members of the Mystical Body may persevere in the faith, and that, like St. Peter, they may be delivered from this terrible persecution. May such a day serve as a reminder to us of the stark contrast that stands between our days of vacation and ease, and their daily struggle for survival as they are killed or exiled from their homes."
The Feast of St Peter ad Vincula: http://liturgialatina.blogspot.co.uk/2011/08/1st-august-st-peter-ad-vincula.html
Source of the picture: http://www.salvemariaregina.info/SalveMariaRegina/SMR-165/Chains.html