By Dan Gilgoff, CNN.com Religion Editor

(CNN) - The Roman Catholic Church announced a major campaign Thursday aimed at bringing attention to what it said were growing threats to religious liberty in the United States, including the pending White House rule requiring health insurance companies to provide free contraceptive coverage to employees of Catholic organizations.

An official with the U.S. Conference of Catholic Bishops said the initiative would stretch out over the course of a few years and that it would include everything from encouraging priests to address religious liberty concerns in church to sending inserts for church bulletins.

“Religious liberty is under attack, both at home and abroad,” the American bishops said in a new document titled “Our first, most cherished freedom.”

Compared to other Catholic communications campaigns, “This is bigger in that it’s not a one-time thing, not aiming for a specific Sunday” said Sister Mary Ann Walsh, the communications director for the U.S. Conference of Catholic Bishops. “It’s going to be extensive and it’s going to be occurring over a few years.”

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The Catholic bishops say a proposed White House rule connected to the Affordable Care Act requiring health insurers to provide free contraception coverage forces the church to fund an activity it opposes for religious reasons. The White House tweaked an earlier version of the rule that required employers, rather than insurance companies, to pay for contraceptive coverage, mollifying some Catholic groups who objected to Catholic colleges and hospitals having to fund contraception coverage.

But the bishops said the so-called White House compromise didn’t go far enough.

In their Thursday document, the bishops also said that a handful of American states and municipalities have driven Catholic foster care and adoption services out of business because Catholic charities refused to place children with gay couples or unmarried straight couples.

The document also said that the federal government recently revised its contract with the Catholic Church’s Migration and Refugee Services to require it to provide or refer women to contraceptive and abortion services, in violation of Catholic teaching.

“Religious liberty is not only about our ability to go to Mass on Sunday or pray the Rosary at home,” the bishops said in a Thursday statement. “It is about whether we can make our contribution to the common good of all Americans. Can we do the good works our faith calls us to do, without having to compromise that very same faith?”

“This is not a Catholic issue,” the statement said. “This is not a Jewish issue. This is not an Orthodox, Mormon or Muslim issue. It is an American issue.”