77 We cannot end this Encyclical, Venerable Brethren, without referring once more to Our own and St. Leo's most ardent longing: to see the whole company of the redeemed in Jesus Christ's precious blood reunited around the single standard of the militant Church. Then let the battle commence in earnest, as we strive with might and main to resist the adversary's assaults who in so many parts of the world is threatening to annihilate our Christian faith.
Source: Aeterna Dei Sapientia (Vatican.va)