Anti-abortion movements, also referred to as pro-life movements, are involved in the abortion debate advocating against the practice of abortion and its legality. Many anti-abortion movements began as countermovements in response to the legalization of elective abortions. Abortion is the intentional termination of a human pregnancy.
By some, especially in the media, the terms used in the debate are seen as political framing: they are terms used to validate one stance while invalidating the opposition's. For example, the labels "pro-choice" and "pro-life" imply endorsement of widely held values such as liberty and freedom, while suggesting that the opposition must be "anti-choice" or "anti-life" (alternatively "pro-coercion" or "pro-death"). The AP Stylebook (Associated Press) favors the terms "abortion rights" and "anti-abortion" instead.
However, some in the "pro-life" movement view the term "anti-abortion" as an inaccurate media label as well. For example, not all who would describe themselves as "pro-life" are opposed to abortion if the life of the mother is in certain danger. Also, for many in the "pro-life" movement, the word "life" reflects the core value and truth for which they sincerely believe their causes represents. This view is heavily influenced by religious belief in many, but not all cases. There is significant philosophical debate regarding whether human embryos acquire personhood and human rights upon genetic formation or upon fetal viability.
Pro-life advocates cite moral and philosophical arguments against both the acceptability or legality of abortion. Many advocates also hold religious objections to abortion.
In Europe, abortion law varies by country, and has been legalized through parliamentary acts in some countries, and constitutionally banned (or heavily restricted) in others. In Western Europe this has had the effect at once of both more closely regulating the use of abortion, and at the same time mediating and reducing the impact anti-abortion campaigns have had on the law.