At an anti-draft gathering in Bnei Brak, instead of his planned speech, Slabodka rosh yeshiva Hagaon Rav Moshe Hillel Hirsch simply apologized for the timing of the event, which, unbeknownst to organizers, fell on the secular memorial day for October 7th.
WATCH:
I don’t blame them. Is the Yom Kippur war remembered on October 6th or is it remembered on Yom Kippur? This they decided to do secularly. (Better that they did it this way anyway.)
Shemini Atzeres (when the attack happened) is a good day to remember it since we say Yizkor on that day anyway.
D.B., perhaps you say Yizkor on Shmini Atzeres. We do not disturb the Simcha of Yom Tov by saying Yizkor. We only say it on Yom Kippur.