The abortion debate refers to discussion and controversy surrounding the moral and legal status of abortion. The two main groups involved in the abortion debate are the pro-choice movement, and the pro-life movement. Each movement has, with varying results, sought to influence public opinion and to attain legal support for its position. In Canada, for example, abortion is available on demand, while in Nicaragua abortions are illegal. In some cases, the abortion debate has led to the use of violence.