In this post from the Catholic Key Blog, the blog, as noted on their site "from the staff of the newspaper for the Diocese of Kansas City - St. Joseph in Missouri," there is an excellent online discussion of the reality—which some Catholics still have difficulty understanding or accepting—of the eternal spiritual warfare that exists (with the Church as ground-zero in many ways) between good and evil.
The Catechism speaks clearly of the spiritual battle against evil.
"409 This dramatic situation of "the whole world [which] is in the power of the evil one”makes man's life a battle:
"The whole of man's history has been the story of dour combat with the powers of evil, stretching, so our Lord tells us, from the very dawn of history until the last day. Finding himself in the midst of the battlefield man has to struggle to do what is right, and it is at great cost to himself, and aided by God's grace, that he succeeds in achieving his own inner integrity."
An excerpt from the post at Catholic Key.
“A number of recent editorials by Catholic Obama partisans have sought to discredit the U.S. Bishops and the pro-life movement as a whole by grossly misappropriating the words of Kansas City – St. Joseph Bishop Robert W. Finn.
“Sometimes with attribution, sometimes without, but never in context, they have ripped four words, “We are at war,” from a 3,981 word address Bishop Finn made to a pro-life convention April 18, and given it meaning and context of their own making.”