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The March for Life (Washington, D.C.) is an annual rally protesting both the practice and legality of abortion, held in Washington, D.C. on or around the anniversary of Roe v. Wade, a landmark decision which was issued in 1974 by the United States Supreme Court decriminalizing abortion. The march, whose stated mission is „to provide all Americans with a place to testify to the beauty of life and the dignity of each human person,” advocates in overturning Roe v. Wade. It is organized by the March for Life Education and Defense Fund.
http://en.wikipedia.org/wiki/March_for_Life_(Washington,_D.C.)
Also:
March for Life (Paris), an annual demonstration held in Paris protesting abortion
March for Life (Prague), an annual anti-abortion demonstration held in Prague
March for Life and Family, a series of marches organised in Warsaw by conservative-Catholic institutions, combined with a pop music performance
March for Life Chicago, an annual gathering in Chicago of people and organizations opposed to abortion
March for Life Zagreb, an annual pro-life and anti-abortion rally held in Zagreb