October 28, 1955
Ariel Sharon (standing 2nd left) and colleagues. Also notable: Meir Har-Tzion (standing left), Moshe Dayan (standing 3rd left) and Rafael Eitan (crouching right). (For additional perspectives on Eitan, see this obituary and this recent interview with his widow.)
The above photo, captioned “Israel’s legendary soldiers”, is taken from this gallery at the Jerusalem Post’s website. It’s worth a look, though it’s necessary to slog through a lot of relatively dull recent photos in order to see more-interesting material from the 1950s through 1980s.