JERUSALEM — Felix Muller, 20, was born long after the Holocaust ended, but that doesn’t diminish his sense of obligation to the victims.

“As a German, it’s part of my history whether I want it or not,” Muller said.

Last summer, he and two dozen other German volunteers arrived in Israel for a year of service through a group called Ot Hakapara, Hebrew for “Sign of Atonement,” working at libraries, nursing homes and community centers around the country.

On Sunday night, they will join Israelis in observing the annual Holocaust remembrance day, attending the official ceremony at Yad Vashem — Israel’s Holocaust memorial and museum — and speaking with Jewish students about the Nazis’ crimes.

Muller says his time in Israel has brought him a number of powerful experiences.

At the nursing home where he volunteers, he said, a 90-year-old woman ignored him for weeks, until one day she struck up a conversation with him — in German.

“She said she hadn’t spoken German to anybody in 60 years. She just stopped speaking it after the Shoah,” Muller said, using the Hebrew word for the Holocaust.