The anniversary of Roe vs Wade in mid January brings thousands and thousands of pro-lifers to the streets each year across the United States.
The biggest demonstration is held in Washington, DC, as marchers conclude their annual procession with a rally at the Supreme Court.
A sister demonstration on the west coast, in San Francisco, is also growing.
Last year the Walk for Life West Coast – now the second largest pro-life rally in the United States – drew a record breaking crowd of 50,000 people.
This year, crowds are expected to surpass that number, especially in light of the attention given to Planned Parenthood in 2015 by one of the speakers who will address the marchers.
David Daleiden, the founder of the Center for Medical Progress, will speak at the Walk. Daleiden is the man behind the series of videos that shocked the nation by detailing the use Planned Parenthood makes of fetal tissue.
In addition to Daleiden, Obianuju Ekeocha, the founder and president of Culture of Life Africa, will address the Walk.
The Walk is scheduled for Jan. 23.