President Donald Trump will join hundreds of thousands of pro-life Americans in their March for Life rally on Friday, Jan. 24, becoming the first president to attend the annual anti-abortion event.

“This Friday, January 24, President @realDonaldTrump will be the first President in history to attend the March for Life!” the White House announced on Wednesday.

The announcement came after the event organizer—March for Life Education and Defense Fund—said, “Hundreds of thousands of pro-life Americans made their voices heard this month. We are a pro-life generation. Thank you for marching for life! Join us again at the March for Life on January 24, 2020.”

Responding to the call, President Trump replied, “See you on Friday … Big Crowd!”

USA Today citing Jeanne Mancini, president of March for Life, said the president will speak to the thousands of marchers gathering on the National Mall for the event.

“We are so excited for him to experience in person how passionate our marchers are about life and protecting the unborn,” Mancini said.

Mancini called President Trump and his administration “consistent champions” of the March for Life movement, citing his appointment of conservative judges and federal workers, efforts to cut taxpayer funding for abortions, and his calls for an end to late-term abortions.

This year marks the 47th year of the March for Life event, which is an annual rally peacefully protesting both the practice and legality of abortion, held in Washington, on or around the anniversary of Roe v. Wade, a landmark decision issued in 1973 by the United States Supreme Court decriminalizing abortion.

President Trump has decided to join the event this year, after addressing the crowd via satellite for the past two years.