4 You know well, Venerable Brethren, the calamitous conditions of our times. Fraternal harmony among nations, shattered for so long a time, has not yet been re-established everywhere. On the contrary, here and there, we see souls upset by hatred and rivalry, while threats of new bloody conflicts still hover over the peoples. To this, one must add the violent storm of persecution, which in many parts of the world, has been unleashed against the Church, depriving it of its liberty, saddening it very cruelly with calumnies and miseries of all kinds, and making the blood of martyrs flow again and again.
Source: Ingruentium Malorum (Vatican.va)